I wouldn't mind the following to occur re: potential upgrading:
1) have my speaker crossovers rebuilt and speakers set up to be biwired; and
2)
maybe (if the speakers were made biwireable) consider purchasing new speaker cables, say, through a Grover SC group buy.
I think that's it. I'd perhaps like to sell off a couple pairs of ICs I no longer use, as well as some spare tubes (some nice NOS 5751s including Sylvania yellow label TMBs, and GE TMBs).
However, if I ran into $3.5K that was lying around, I'd like to try the Gallo 3.1 speakers in my system. If I had about double that amount, I'd also like to try the ModWright LS 36.5 preamp with the PS 36.5 dual-mono power supply. With my daughter in college, there's little chance of either happening!
And, since I'm into dreamworld here, let me try: the ModWright SWLP 9.0SE phono preamp, Ray Samuels' Emmeline XR-10B Phono Stage, as well as Samuels' Emmeline II B-52 Pre-Amp/Headphone Amp. Furthermore, I wouldn't mind being able to afford to send my vintage Fisher 800B receiver down to the Fisher Doctor or some other equally qualified individual to have the RestoKit installed and the unit given a through inspection.