What would you do?
Personally neither, but for you it depends:
If you are going to hold onto the bike for years and really want a personalised bike the Velobuild, it is different/unique.
If you are going to ride for a couple of years and then sell and replace: the CF7. The resale value of Chinese frames (with possibly the exception of WinSpace) is 0. Spent a lot of time looking for a 2nd hand rim braked bike. A couple of Chinese frame, Chinese carbon wheels, ultegra mech group set were not selling for 1000AUD. While mainstream brands Canyon, Giant etc same wheels and groupset were selling for 2000AUD.
I have already built a Velobuild and have Chinese carbon wheels and components on a lot of bikes. At the moment for me, the value was in buying a 2nd hand high end mainstream frame and building it how I wanted.