I picked up a Fox Trac Centrum and a Fox Trac Special in Montana in 2008.  Over the years I started and stopped restoring the Centrum.  Now the Centrum is finished and ready to take out and try on the snow.

This is what it looked like when I found it on a craigslist ad.  You will notice it has the wrong motor.  1969 models did not have a twin.  There was no wiring harness, or engine cover:

This is the Special I got the same time as I bought the Centrum.  I am still working on it.  More about it when it is finished:

I managed to find a right engine, made a wiring harness, and found all the parts needed to restore it.  I worked with The Sled Printer to who made a very nice decal set that matches the original factory decals.  After disassembly, de-rusting, sanding, painting, and some fabrication it is now ready for the snow.