Yeah I hear you on these red amps. I'd like to have a red and blue to round out my collection. My wife's favorite color is red. But I'd hate to give away a mint for something just because its red LOL... Perhaps Kustom will make some red chinese reissues again LOL.. I don't even think about a gold one as they would be impossible to locate.
Another thought is that there are several people who build Vintage Fender, Vox, and other cabs and the prices are really not too bad. Especially when you realize you will have a brand new cab.
When I play bass I use a small behringer board for all of my tone signal chores into a Centron Power amp that I stole away from my Pa and it powers three of my Kustom cabs. Plenty of headroom and all of that good tone too.. Its like the walls are breathing with the bass notes.
If you deciede to get rid of a 200 Blue, this wonderful red, or a 100 or 150 bass cab with 2x12 for a decent price BC I'm your man.
Congrats again on your new 3x15.