I'd have some concern on those drive shaft angles. The front one looks to be way more then the 30 degrees a u-joint can handle, and the rear joint looks to be nearly straight. I suspect there is some major drive line vibration going on there. Probably why "some mechanical skills are required to finish this build". They screwed up the drive shaft angles and don't know how to fix it, or it will be a major pita to fix it.

That's a lot of money for something not yet road worthy, on a new build. Makes me wonder what else they screwed up. Gene