I traded my old bike in on a 2012 Ultra Classic with all the goodies, List was $23,995. I also bought a 99 fat boy for a project bike. Stripped it down to the frame and rebuilt it, cam, lifters, push rods, jug and head work new valves and carb. added a lot of chrome and tin on the front. After it was completed I had as much in the rebuild as I paid for the bike.
With this being said, I dont think you can buy a stripped down new bike and make it your own as cheap as you could buy a CVO ready to ride.