I have a Cat Duster MX roller (frame, wheels, tires, forks, axles, throttle, grips, brake assembly) that I will ship to you for cheaper than you can buy an AZusa roller, and it will be a bike that you could sell pretty easily later if you wanted.
It's a solid bike, but needs some love.
I assure you that redoing a bike certainly gives you the feeling of building it yourself. There is a certain amount of pride when you've got it all together that you can't deny.
Let me know if you're interested in the roller.