F6 Amplifier

I would be more inclined to make a outboard PSU for the transformer, rectifier and first caps, that will keep the bulk of the switching noise away from the circuit, but much more importantly, keep the big honkin' unshielded toroid away from the little unshielded input transformers...

That's a good idea. Cost more, but in the end will make things more manageable and even easier to lift.

Thinking about high current connectors. I'm not a big fan of Speak-on connectors.
 
Okay I'll trump that!

From the XS manual. Notice you can't connect them while powered. They have no breaking capacity by design. Probably will short.

"Power Connection – The power supply and channel chassis are
connected by an umbilical cable with Neutrik Powercon connectors.
These connectors have a locking mechanism which requires a
clockwise turn after insertion. Be certain that this connector
locks properly. The little lock button will click upon locking. After
it has been turned and locked it will not rotate back unless you push
the locking button. Do not attempt to make or undo this connection
while the power supply is plugged into the AC outlet."