Hi MadFloyd,
Tough decision. The advice so far is on point. I think you will need to save up enough cash to possess at least 2 units, compare and sell off.
Sound-wise, here are some thoughts... As my baseline, I agree with Keith that CAT (with stock tubes) is dead on neutral... The CJ sound has gotten progressively modern, from ART to ACT to GAT, but is still more tubey/ euphonic than CAT. My CAT is a lot more clean than the CJ units I had, with the euphonic fat trimmed off by the butcher, leaving only the marbled meat.... Yet you find CAT euphonic, so you will definitely find CJ euphonic. Based on this, I wouldn't waste my time with CJ.
Yet if you move in the "tubey"direction, I think the multi-chasis Jadis models like jp80 and, better yet, jp 200 kill cj. Jadis is just not marketed as well these days.
Moving in the SS direction, I think of VTL as an SS preamp with tubes. It might be your cup of tea. But it probably wouldn't have same dynamics / drive as the SS Spectral.
Seems like the easiest next move is to get that Spectral unit from the local dealer into your system, and work from there.
Best of luck!