I swapped the buckets from a '94 4Runner into my '85 pick-up, FWTW.
I had to drill one hole on the drivers seat front, next to the tranny tunnel. The other 3 lined up fine. Those seats were exceptional. The leather was hammered so I covered them, but the lateral and lumber support was really nice.
If there wasn't much difference between the '85 (1st gen) and '94 (2nd gen) mounts, it stands to reason that 3rd gen to 3rd gen or 3rd gen back to 2nd gen, should be an easy swap.
The seats in the '87 4Runner were perfect. Similar to what taco chaser mentions with the 84 seats. I would have been happy sitting in those everyday.
My personal favorite is of course, the T100 bucket sport seats. Yet they are very rare and I don't know if they would bolt right in a narrower Tacoma. But the seat does slide forward since there is no 3rd door on the T100 either.