You should tell us about the worm-gear boxes first.
Unless they are the anti-backlash type, sell them.
The drivers will keep for a few years, but like everything else electronic, they will have a very short life before they are deemed obsolete.
Were you thinking of a rack and pinion drive?
Think of the accumulative backlash error.
... This remind me, I have a couple of "3 axis Bandit (CNC) controllers" for sale.. Cheap! ...6 large stepping motors included. (2 with brakes.)
They came off from Bridgeport type milling machines.