Do you have a hint how to search? The results are all trash even if search for something easy like "SRAM AXS".

Create an account and search directly on TaoBao. Mobile app search doesn't really work. Webpage search is good, image search is best.
When you find the item, paste the Taobao link to your agent and let them buy it or if you want cheaper, get the agent's address and order directly on Taobao to your agent's warehouse. They will provide the same QC pictures and service if you order direct from Taobao.

If you live in the US, Canada, Australia or some Asian countries, Taobao can handle shipping from their own warehouse, but there is a risk of no QC pictures and low chance of a return/refund (your agent can return the items if you don't like them).

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The British Racing Green color from the lightcarbon palette is a pearl color. Below is a photo of the frame in this color.

As for samples of other colors, I recommend using Chat GPT or Gemini. Attach a photo and add a query such as "change the color of the frame and fork to (color here). Include a verbal description of the color, with the Pantone and hex ID)". Below are a few examples of generated photos (reference photos borrowed from this thread).

The green frame in the photo is mine, it's true that it depends on the light conditions - it can be dark green or if the sun shines it's pretty sparkly and bright. I love the color. Don't have any pictures as I didn't finish the build yet.

I keep seeing different "LightCarbon" graphics and logos. Has LC provided a menu of options they have to you folks to choose from?

I can't make any sense out of their most common headtube logo, though it sort of says "LC" if you turn it upside down.

For the downtube logo there's a new design which is now default, but you can still ask for the old one which is more clean in my opinion.

Bought a full ultegra 12 speed group for 872 euro, interested what the import tax to eu is going to be tho

105 Di2 w/ 11-36 cassette was 558 and 32 euro taxes via DHL. Seller declared at 80 usd.
Saved around 150 euros in comparison to EU online retailers. Hope nothing breaks down, because the savings are pretty nominal.

What's the current waiting time for them to make the frame? Still 40-50 days? I wonder if I order now, I would receive it before Chinese New Year?

The regular Grand Prix are great, I've had them stock on my bike. Thinking about upgrading to tubeless and 50 usd per pair seems much better than 50 for one GP5000. I've heard that rolling resistance is a bit better on the 5000s but can't lose what I don't have right?

Can any crank be put with the P515 ? I'm currently using the original cranks of my R7000 but they're in 175mm and I'd like to try 165mm.

You cannot buy only the powermeter, it always comes with the cranks so just choose the 165mm. You can additionally choose to buy their chainrings or keep your Shimano chainrings, they do fit but don't look the prettiest.