Audio Rack Selection

Space is a bit tight where the rack will sit, would love to separate the mono’s but that looks unlikely.

In that case Geoff we all need to put out systems on the floor in the basement.
Bh, trust me on this one. The amps will do much better with short wires and the rest of your equipment will be happier without those big power supplies right under them. It will also allow you to use a shorter, smaller rack making room for the turntable's wall shelf above.
If you keep the speaker wires under 4 feet I have a few extra lengths of Kimber 8VS hanging around I would be happy to send you. You just pay the postage. If you want me to terminate them you will have to send me the terminations you want to use spades or bananas. This will give you the extra money for longer signal wires.  https://www.parts-express.com/cat/connectors-adapters/9
Are your ins and outs RCA or balanced?

Did you take a smart pill today? 🤓

I have mostly Mac equipment and because of their size, I chose to go with Solid Steel audio racks.  Look into them.

If you are tight on space perhaps something like the Quadraspire SVT will work https://quadraspire.co.uk/svt.html . Reasonably priced as well and sometimes you can find used on hifishark.