get the cube. the frame is pretty aero, and has relaxed geometry: very good for an ironman for someone tall like you, you should be able to install aero extensions and get comfortable (expect a long process, fitting aero extensions that fit you, on a road bike).
The aliexpress link you mentioned is trash, and happens to be in violation of a multitude of laws, too.
as of "good fakes", the "best" shop recently shipped someone on here a frame so badly out of spec that it belongs in the bin and can't be ridden.