You would want to use large tyres because it's a stiff frame, but Peter's grevil clone ticks your boxes. It's very much a road geometry (i use it exclusively as a road bike this summer), it's got a high stack which is good for someone your height. It's built like a tank and it's very stiff (idk how it compares to a real pinarello, but i wouldnt take that on multi day adventures because of how stiff it is). The grevil was meant to be a race gravel bike so maybe it makes sense in fact.
Tube shapes are pretty aero looking, and i'm constantly in the smallest sprocket so it goes vroom easily.
There aren't many road bike feeling bikes w 50+ clearance that are affordable. It is one.

Hey, I have one of these.

It's pretty nice, but it was a bit of an ordeal getting the cockpit installed. The stem they sent me was 1 1/4", the steerer tube is 1 1/8", and the Giant OD2 shims that are fairly easy to find don't actually work--the tolerances are off by just a little bit, so the shim fits on the steerer and inside the stem, but not both on the steerer and inside the stem at the same time. Nobody I talked to at XMCS knew what the hell I was talking about. I eventually found https://www.aliexpress.us/item/3256810304456262.html?spm=a2g0o.order_list.order_list_main.45.5e341802ilWXaR&gatewayAdapt=glo2usa (Kocevlo 1 1/4" to 1 1/8" fork shim on Aliexpress) which worked just fine.

How important is a logo to you? While i would like to advertise the XCMS brand I have chosen to have no logo. My current frameset is almost logo free I am used to it.Those colours you have there are very close to mine. Once mine is done i will post a picture here.

Yeah, I'll second this. I really like the utilitarian no-bs vibe of no logo and plain finish, second choice would be a legible logo that says what it is and doesn't apologize for it--"Xiamen Carbon Speed Sports Goods Co Ltd." hell yeah, "A E R Y S" in fancy font meh.

What are the differences?

I had a first gen Tacx Neo (electromagnetic motor) and now have a Kickr V6 (non-core).  I didn't like the Tacx--the resistance would slip at high torques (relative, not absolute--like a 900w dig would elicit noticeable slipping) and at high cadences with modest power (spin-ups at 120-135rpm and 200-300w). It would also get worryingly hot with use. It's possible that the basic Cycplus is better than the top-of-the-line-circa-2016 Tacx, but I think it still lists a relatively low max torque. The resistance on the Kickr feels more natural under high load, though it does have a heavier flywheel than the Core, so I can't speak to whether the Core shares this trait.

I'd probably go with the Kickr for better customer support but ymmv depending on country.

I immediately noticed it was easier to "get over the top of the pedalstroke" and much less constricting in the aero position,

My impression of the Internet fit consensus (not 100% endorsed, merely mentioning it for discussion) is that this is a sign of cranks too long. Of course, it's easier to adjust cleat fore/aft than it is to adjust crank length, but then again if cleat fore/aft causes foot pain and you have to start screwing around with custom insoles, etc., it may be a wash.

I will say, shorter cranks plus seat forward plus "don't worry about seat too low" seems to have done a number on my left knee, which had previously been immune to anything I could throw at it on a bike. I already run my cleats as far back as they'll go, but I think a true midfoot cleat fit might be ncessary to make the rest of it work for me.

Definitely should worry about "seat too low" at least a little bit. Not as much as "seat too high", but it's still bot something to write off. Yeah lower seat is better for aero, but biomechanics should still be the main concern. Shorter cranks and forward saddle both reduce your terminal leg extension if you don't change seat post extension.

On this, I will also note that the Wove Bike guy, who is otherwise pretty into "progressive" road/tt fits, seems to put most people on 170-175mm cranks for approximately this reason, see e.g. https://wovebike.com/blog/bikefit and https://forum.slowtwitch.com/t/tri-bikes-need-greater-pad-reach-x-and-the-role-of-crank-length-in-bike-fits/826776/2 (I believe he's the OP there.).

I will say, shorter cranks plus seat forward plus "don't worry about seat too low" seems to have done a number on my left knee, which had previously been immune to anything I could throw at it on a bike. I already run my cleats as far back as they'll go, but I think a true midfoot cleat fit might be ncessary to make the rest of it work for me.

I swear I haven't bought any more silly Chinese shoes since my last post, but has anyone tried
https://santic.com/products/santic-ti-tech-titanium-alloy-outsole-road-shoes?variant=49171637731565 ? Is a titanium sole actually all that? Also, looks like they're pretty narrow?