personally i would start out with about 300lbs and would get studded tires and go from there. its been yrs but i had a 2 wheel drive truck back in the 80's and remember putting about 400lbs before i was happy with traction, with studs ofcourse.Maybe if I we put a few hundred lbs in the bed? Maybe that would help
I would not get a 2wd truck up here. You could make it work but would be limited with winter travel. If you do decide to get rid of the T you will take a huge lost up here. 2wd trucks take a serious mark down here because nobody wants them.