I'd stay on dry ground in your place.
You will get stuck in the mud.
Your friends will laugh at you.
They will try to pull you out.
They will break something on your Jeep.
Your dad will kill you.
Find a beater yoda or zuke for offroading. Save your new Jeep for impressing the girls with cushy interior.
Tires that are good in mud pretty much suck on the road. They are loud and wear down very quickly.
However, you can fit any kind of tread you want without a lift or trimming. Simply buy the same size tires your Jeep came stock with. You could probably get away with going to the next larger tread width, but that's about it.