The first Toyota reman starter I received from Toyota dealer (September 2023) had green oxidation on the contacts when I opened it to make sure the contacts were properly seated. Was not impressed to see that inside a brand new reman. If you go with a Toyota reman, or any reman, I would at a bare minimum make sure the contacts are properly seated and then bench test the starter to ensure it works before burying it under the manifold.
One can buy most of the parts to rebuild the starter yourself for not much more than the Toyota reman price, and you know exactly how it was rebuilt. I believe starter parts for the earlier 100s are even cheaper before they changed the plunger design. Shopping around I managed to buy a new Toyota clutch assembly, switch assembly (whole enclosure with contacts, plungers, etc), and brush holder for little more than the cost of a reman (~$130). Rebuilding one is very simple and the FSM lays out the specs for bench testing.
Just another option. Aside from the oxidation on the first reman, it otherwise looked like it was a clean rebuild and when bench tested, spun up immediately and met all the FSM specs.