Dave,
my main reason to use the multi mount was 1, to get the weight off the front end when I don't need it and 2, to save some money and use it either front or back of any of my trucks. I can only drive one at a time... so...
For 10 years my winch was on the front of my yota in plain view. I never had a problem with theft. Although your right that the multimount adds security.
The multi mount is a 2" receiver system. So if you have a class III or better rear 2" receiver, your fine.
Just need the wiring assy from Warn. For about 120 bucks, it's hard to bet. About 22' long, comes with a safety disconnect realy, connector and a few other dodades. I priced putting the kit together myself since I have sources for the same very heavy wiring and realys. But I still came out slightly higher than the price of the kit.
All you need is a multimount for the winch and a front hitch. Warn makes one, I have that one. Drawtite makes one, which my friend has and uses a 8Klb warn winch on.
Again, if you have a class III or better rear 2" receiver, your all set. Just need the wiring kit for the rear.
If you have a front air dam, you will need to either remove it , or cut a square hole in it for the 2" front receiver to stick through.
Thats the only thing thats not bolt together in the whole process.
If you want to see some pix, let me know. I also have some pix of the rear wiring assy in the box... have it, just havent installed it yet.
-Bob