Regarding the UAD, had it not been for the work of
@Elias64Fr @CaseySJ and others, I would have abandoned my Thunderbolt devices and made peace with my Digi 003R (Firewire 400). I was very close to purchasing one of the Antelope TB devices from ~2015 after returning a Focusrite unit. When my 2018 Z370 build wouldn't hotplug/powerswap on the UAD Apollo, I eventually gave up and bought the high spec CTO 2018 Mini. When I was pulled back in with the Z390 and this
@CaseySJ build, I regretted buying the Mini since I already have a couple of the 2012 "white whale" Mini's.
I wonder how you would like a used RME interface. At this point, I wouldn't be shocked if Avid was blocking our builds with their Carbon interfaces.