Ideas for used SS amp

Moscode 401HR. Excellent match with the VR4 HSE.

IMO, the Moscode's tube rolling flexibility with the input and driver tubes
helps the VR4 HSE's top end, which can be a touch grainy with pure solid
state amplification, IMO

However, the Levinson and Pass are both good options.

Clayton amps might be worth a look as well.

I was planning on using the one V12 for the top end and a used SS for bottom,right now I'm using 2 V12's.