Frame length
Okey Dokey, I took pictures that showed 13" of frame in front of the forward love handle, lower bolt.
Great pictures that clearly showed the winch bolts, bumper bolts and the easiest spot to cut off a big bulky bumper right below the cover surrounding the area where your 'new winch' will go.
The camera will not give up the photos without bringing the camera home so.....no pictures.
It looks like you lost about 12" and the fix could be fairly simple. The original winch bracket, as shown in post #138, is offset. That would give you room to plate the inside of the new frame, leaving a clean look as well as holding up your new bumper.
Four cuts, clean up the frame, bolt on a bumper, add a winch, pto, levers, brackets, cable, mid-shaft bearing, cable, hook......and you're done
The available frame pics on #138
http://www.steelsoldiers.com/early-deuce/52255-m135-preservation-14.html
I'll post more pictures, if you do