Raid, I'll start by saying that I'm a happy Harry Fleenor customer. If you haven't already, you might want to read his blurb on CLA / overhaul:
http://www.rolleirepairs.com/cla.htm.
The bottom line is that, in general, if you're lucky, you get what you pay for. With Harry, you can be sure of what you're getting. My main MF camera is a '58 Rolleiflex T, that I bought off ebay for $300 due to supposed lens separation issues. When it arrived, I couldn't find any indication of problems with the lens. I sent it to Harry, who overhauled it and installed a Maxwell screen. When it returned, I had (with purchase price/overhaul/& shipping) a $1k Rolleiflex that has worked flawlessly for me and been all over the world & still is a great functional camera.
My take on your situation is that if one thing on your old Rollei is having issues....it is most likely ready for a full service.
In a parallel situation, I confess that over decades of Leica M use I never sent an M in for service. Last month I sent a '68 black paint M4 to DAG. It came blackk working flawlessly & amortized over the # of years I've used Leicas....the cost is essentially nothing.
If you ever work with good tradesmen, they value their tools and look after them...& give them the required service. In the camera world (speaking of the past line of mechanical cameras....Leica/Nikon/Canon Pentax et al), I'd hazard a guess that most of them never have any service done during their lifetime of use. Actually they are mechanical wonders.
Harry, like the other highly respected top repairmen, wont be around for ever. Give it the love Raid.......after all, in my opinion, the cost/benefit value is high.