I want something like this at some point!
So far I have:
A4000D
Cyberstorm MK1 060
Prometheus PCI
Voodoo 3 PCI
I really want a Mediator and much the same sound and memory setup as yourself! I need to put aside plenty of time to get things running. Big box Amiga's are new to me even though I have been around this stuff since way back, 1988 onwards.
You mention the PSU recap, did you get a kit for that? I have a capacitor kit for a liteon psu for an dead 4000 that needs some serious work, but the 4000 I recently acquired has the same psu as yours, all working 100% but I want to re-fresh it.