I don't know a bit of what dolt does, but let me suggest, that my 08 softail custom has a 200mm back tire. You may be able to see if a swing arm from the 07 thru 10 softail will fit you bike.
I can't say for certain but the '02 softail frame, pivot shaft and pivot shaft spacers all have different part numbers from the '08 up softail parts. That does not necessarily mean that the later model parts cannot be retro fitted to the early frame but I have my doubts.
The fat rear tire craze burnt out a few years back but Heartland, Titan Customs and Phat Performance still, I think, sell conversion kits. Every kit I am aware of requires butchering the stock frame to attach the rear fender supports, etc. and cost north of $3K. Phat Performance used to sell a kit for the Deuce that did not require cutting up the frame but did require the 20mm belt and pulley and, IIRC, tire selection was limited to Metzler and Dunlop; ran north of $2K All 200mm tires do not measure 200mm and not sure if the Metzler and Dunlop options for the Phat kit are still available.
I can't speak for the OP but when one considers what such a conversion does to the already pathetic resale value of a used softail, the fact that the bike may not be ridden two up post conversion and the reduce handling affect post conversion; one has to wonder if the conversion makes sense for a daily driver. It doesn't for me but each to his own.
If I was the OP, I would be looking for a used Deuce 17" rear wheel, Vulcan makes a spacer required for proper fit and the SE180mm rear tire which is about an inch wider than the stock tire and call it good but that's just me. I wish him luck with the project and, of course, let us know how it goes and provide some photos of the completed project.
