Where should I go for an entire hydraulic GRX 2by groupset (cranks, cassette, disc brakes, front and rear derailluers, shifters, chain, etc.)? I'm building a bike.

I've found some on Aliexpress from a seller called anrancee and am pretty sure it's legit but not entirely sure. My budget is an absolute max of $550.

Also, on the topic of bike parts, are the Elite carbon disc brake wheels on Amazon good value for the money and most importantly good, safe, reliable wheels? They're around $398 shipped.

One more thing - are the tpu inner tubes on Ali a good idea or are there better ones out there?

Thanks So much!!!