Dirt, rocks, belt drive, don't mix well. I had my XR1200 for about 4 months and loved it to bits. Awsome handling, and very comfortable for my 6'3"frame. I had a Remus 2 into 1, high flow filter and a TTS tune by Scotty and constantly saw doulbe ton figures on my private test track. Hey Bucket???
I would be looking at the Triumph scrambler for the sort of work you want to do.
Regards Lofty
You should be able to convert the XR over to chain. I believe Mildura HD converted the XR1200 that they were prepairing for the jump record to a chain drive.
Good luck with it.
I went for a Ride a few weeks ago with Flat Tracker