Nto sure what you're looking to do, but some things to think about...
-The hitch mount style will severly reduce your approach/departure angles. Depeding on the trail, you'll be dragging it through what ever is on the trail.
-If you're looking at putting the winch on the back of your truck, you're going to need at least 4 gauge cable run the entire length of the truck. I'd suggest going bigger though as the loss with the kind of amperage that the winch will draw is alot, go with 0 or 2 gauge.
-If going the hitch mount route, you'll have to decide if you want to run with it on the truck, or install it when needed. If you're planning on installing it when needed, think about being stuck in a hole, or bumper deep in mud. You'll be digging and getting dirty, and possibly not being able to mount it.
-You said that you have a hitch on the back of your truck, but do you have one on the front of the truck to be able to effectively use the winch to pull yourself through whatever you'll need it for?
If you're on a budget, stick with the essentials. Get a good recovery strap, some shackles, a hi-lift (and know how to use it!!!!!!), and wheel with guys/gals that are doing trails you're capable of. Work on a bumper/winch as you can. There is alot you can do without a winch.