The Nissan Path

im looking to buy a 96+ pathfinder and wondering what yall can tell me about hte vehicles
things to look out for?
things that are nice to have (like do any of them have a 4wd full time option?) or are they just 2wd 4x4hi and 4x4 lo

what kind of MPG can i expect?
i hope to put the largest tires i can fit w/o a lift
a winch (does anyone besides ARB make a full bumper?) i will probably just go with a brush guard b/c of weight though i want it to be as fuel efficient as possible and i wont be doing any real offroading with it just need to make sure if a dirt trail finds itself infront of me i can make it in (and more importantly out and back home)
are they pretty reliable? or will i be working on this thing constantly?

will they go 200k miles? 300k? whats the life expectancy? are they comfortable to drive long distances? i hope to get my BA in may of 11 and id like to take a VEEEEERY long road trip after graduation and want something i can sleep in and depend on to get me and not leave me stranded in the desert (yea i want to go west)
anything yall can tell me about the vehicle im here to learn as much as possible

Noticed exhaust leak by muffler. Rear suspension problems, too much wobble in rear at speeds of 40+ which is a common problem but the remedy is cheap enough to overlook. The one i bought has 143,000 miles, owner asked 2700, negotiated to 2300. I feel pretty good about the purchase as the interior and exterior are nearly flawless. It is a MT and had alot more power than i expected, even at mile high denver altitude. I dont expect more than 18mpg. We have a first gen pathfinder in our showroom with 430,000+ miles on it, so they are durable. I will post any other problems I find as time goes on.