What a boondoggle. This thing will cost you 50% more in parts and will have a miniscule software library. The new XCode development was just announced. It will take 2 years for it to get traction and thats too late. You are WRONG, as usual. I just priced out the cost to duplicate the low-end iMac Pro in a Windows PC workstation version is about $7,092.00.
See the details of the pricing here.