Well finally you wore something out on a Brent. If its the wheel head bearing thats and easy one if its a motor thats an easy one as well. Just talk to Bob at Amaco and have him send you a new one. He just sent me a fuze holder as one was cracked.
I just bought a spare model B motor -control box and foot pedal thru e-bay as back up parts. They all work and are wired as one-just removed from wheel. I have had to replace all these items at least once on a few wheels in my fleet-now its plug and play
Now as to shoes I only wear beater shoes in pot shop as the shop eats shoes-20 years for studio shoes is beyond reasonable thought process for me-maybe as a hobbist you could but full time no way -shoes last a few years tops before clay /glaze/water gets to them for some reason -like yesterday I mixed up 20 gallons of glaze and tommorrow during glaze day most seems to end up on/in my shoes? I do not know how this happens and it seems to happen more as the iron content goes up so a nice tenmaku turns my socks and shoes red.