Tobyone, welcome to TBN. You've got good advice about the tires, can't add much there. Regarding those logs. A 24" pin oak log 4 ft. long nominally weighs 790 lbs, which is a bit more than a B3200's loader (LA504) would be rated to lift to full height (it's rated to lift 730 lbs 500 mm forward of the pins, a simulation of what can be lifted in the bucket). It will lift over 1,000 lbs in the bucket to a height of 1.5 meters, but I think those 24" logs would give your tractor all it could say grace over, and you'd certainly want to put as much weight on the back end as possible. If you think you'll be moving a lot of larger logs like that, you might want to look at a larger machine, maybe in the L series, since it would have more capacity and a larger frame.