Originally Posted by 3alarmer

...it's still a bad idea from the POV of economics. If you have to have discs, just look for a cheap used bike on the local CL with disc brakes. You don't have the fittings to mount the stuff you need to mount for disc brakes, and any modifications along those lines by you will be of dubious value in terms of either performance enhancement or safety.

Your original premise is deeply flawed. But good luck with it, because you seem determined to ignore all advice to the contrary.