I don't really know any frame as described. However I would like to point out some facts.

Max chainring size is the nemesis of max tire clearance.
So it really depends on what kind of mtb hardtail you are looking for, 2.4 inch tyre support is what i call minimum for a mtb.
Then it comes to material used to achieve that clearance, carbon fiber is usually thicker than metals so it kinda eats up the space between chainring and tire.
Also bb drop is an important factor to consider.

After having these thoughts,
You are basically looking for short travel fork to (mitigate bb drop), metal, long chainstay mtb.
Todays standards, I doubt you will find that.
If you absolutely need 40+ single speed chainring, why not consider a gravel bike.

Update - LC will be providing a new front triangle to make this all good.

Lots of parts arriving today so I’ll build it as a mock up for now.

Here we go, customer satisfaction. Why not all the companies do that?

Well, I wasn't expecting that answer but at least they did. Nevertheless that doesn't change the poor finish and I'm saying poor because of generosity.

Maybe consider inspecting the connection more closely and figure if it is safe and only visual.
I know some retailers do some sort of money back for visually challenged product.

Well if it is not safe or you don't feel it's safe and maybe more issues appear, keep us updated so we all know what to expect.

Thats a good idea, number between 1-10 performance, sizing, durability, geo, quality etc.. If it gets 3/10 or lower you are able to comment or something like that. Problem is verification, which can be resolved with a token system. Lets say after 10 or 20 post and 1 month old members can vote. If admins are willing for something like that, why not? I believe result may be more accurate than opinions.

I would get trp evo(best brakes i've ever experienced) but they are hard to find other than that shimano deore 4pots works flawlessly for me.
Domain requires 200mm minimum rotor so maybe look for 200mm rotor and dont fuss for 1.5mm spacers.
Also 12 speed group set, and if you are purchasing individually you can combine a value based one.
I recommend xt shifter, but every other deore parts are basically heavier XT parts with small nuances. Given that you can actually buy them 
Maybe instead of carbon hoops consider dt swiss as they are very cheap right now https://www.bike-discount.de/en/dt-swiss-m-1900-spline-29-30mm-cl-boost-wheelset.
I'm not sure about 54T upgrade for new dt swiss, this wheel set have hub called "370 with Ratchet LN 18". *Group set decision needs to be made for freehub.
I was between Rs domain and lyrik select 170mm, but weight penalty was substantial, thats front end heavy ended up with lyrik and pretty happy with it.
Also have the deluxe ultimate very similar to select+, I noticed that i add too much psi in order to set the sag correctly but i have fs947 frame so take it with salt.
Lastly tires, I run 2.5, if you are riding on mostly mud get 2.4/2.5 as they carry less mud when clogged. I suffered this last winter learned my lesson.
Quick note some people were having quality issues with carbonda headset, I used my old but better headset cleaned then regreased the bearings almost 100%, they don't rotate much anyway.

Enter

Close call, if lcfs947 had adequate seatpost insertion.
If you are purchasing medium size frame go for carbonda.
I really don't know which one is stronger frame but considering the weight they should be pretty close. Extra weight of LC is possibly caused by overbuilt seat tube/shock mount section.
Quality of materials was okey with LC, found no issue.
Definitely, remove suspension linkage to check if greased enough.
Raw finish is not recommended so order as painted, if you have a car color on your mind just look for Ral code online.
I did paintjob my self/painter guy at a workshop. Not ideal..
Some close up shots.

https://imgur.com/a/lX4lcHO