Amp repair...What to expect.

That is to say:
They've only repaired one channel and it will take more time before they become identical to bring your soundstage back. Don't worry about blue caps.
To be honest I'd do the same, because it's very easy to screw up parameters on digital amp so it will sound like garbage. To be more consistant, I'd probably test transisor's transients(no worries about the brand either) to match one of the pulled-out live ones and than find the one that mathes or simply get the whole batch of them to replace them all, but it's whole different price point of repairs. I believe that they've matched your transistor, but no matter how precise you are, you'll still have some gaps in parameters to be settled.

Hi, I've just completed my project replacing filter caps and reapplying solder to all joints of all boards. My amp is now quiet and sounds great! I couldn't stand the fact that I will have to replace it. It sounds very close to class A at any volume setting

that's great news Marakanetz. It would be a shame to replace it since you're happy with your system. I love the Sunfire sound, plus I dont think you could find a better amp for the price.
My amp is also dead quiet since the service...such great build quality and design, it's a keeper for life; just keep replacing parts when needed.

Bravo.

Replacing parts WILL be a great challenge. These amps aren't supported anymore by the manufacturer for long time already. God only knows who possesses schematics as well if the problem will rise more complicated. Assembled boards to replace aren't manufactured either so exercise safety and protect your unit with surge protectors. There are also not too many of them for sale either as they become slowly the legend of hi-def audio.

You've raised some issues I never even thought of.
Roland at carveraudiorepair has cornered the market on all
parts, but when I needed service it was a 3 month wait. On the forums I found out that he has former Carver/Sunire people with him and the schematics and such.
I went to Vintage HiFi in Pittsburgh (an authorized dealer and service for many years). Very nice owner, my only worry is the quality of the parts used.

Yes, they are in great demand. I'm sure you've followed the sales on ebay...they are snatched-up very quickly.