A wheel puller is basically a gear puller, and very useful. Sometimes a faucet puller works if the wheel isn't too tight, but if you buy, buy a good puller. (gramps had 3-4 slightly different for different engines)
Wheel cups are needed on some wheels to keep it flat while pressing on axles.
Hardwood with holes or hardwood cups are the backyard version.
A careful person can press many wheels axles with less than "proper tools". (vice, drillpress, etc).... know your limits 😉
Quartering is pretty easy when there are axle splines, no splines present and wheel cups become vital.
Don't necessarily pay more for a 2037 w/magnetraction unless it's real fresh. You can't get the replacement gear/bush parts for proper rebuilds and have to use non-magnetraction parts from a 2025/etc. anyhow (same train, no magnetraction).
Worst case...
I'm thinking you could make an open frame of breadboard and standoffs, swap most parts in, add rollers and have a running motor. (if you ever saw some turn of the century electric motors you know how "raw" the design can be and still work well)
