I buy parts randomly, have some new dog rings and sliders coming for a friends Nash.
Replacement rings(proshift or faceplate) are like $87 each(CRS kicking in)? That is just the part, not installed. I don't know what they charge for installation, I've always done all my own work.
Their delivery is sketchy at best. Sometimes they will come through and get it done in a reasonable time. Then there are times you have to call and harass them.
Years back, Paul would tell me to send the gears to them for repair. I told him I have the capabilities to do it myself AND I can do it over a weekend. Not take months. He agreed, their delivery can vary. It's fine if you have all winter, but in the middle of summer it's rough to sit and wait and wait and wait. Paul knows me and takes care of me pretty well.
What transmission are you working on?