there is a big possibility you're gonna have trouble towing (220lbs torque with the 3FE and somewhere around 275lbs torque with the fzj80). i own a 91 as a daily driver. it is the most reliable engine i've ever owned. it starts everytime but when the hills hit, the 155hp let you down quickly
as far as the price goes. i bought my 91 a couple years ago for around the 3000 area. if you're near flagstaff there's a fair deal on a FJ62 for only $2300 on craiglist. it has the 3FE as well.
1988 LandCruiser

1988 LandCruiser