Long bed floor cut down for a short bed?

[evan]

I have a shortbox project truck with a rusty bed floor and the opportunity to buy a wrecked long box truck that has the bed floor in good shape. I can get patch panels for the short box fenders easily but finding a replacement floor anywhere near me is difficult and I'm not really excited about trying to tie in those little bed floor patch panels.

Has anyone chopped the bed floor from a longbox down to use with shortbox bed sides? How did it go? Do you have any tips? If you've seen someone else do it on the interwebs can you post a link?