Low wattage, tube based *power* amp?

So looking at the whole Randall/Egnator thing, it seems like a very practical and flexible solution for the project studio guy for a lot of guitar tones at a reasonable price, combined with something like a Grendal iso cab. But there seems to be a dearth of low wattage, like 5 watt'ish power amp sections to use with them. I could buy an amp of course with a send/return but space is at a premium, and I'd prefer something in a box or a rack mountable box if such a thing exists.

I really don't see anything out there catering to what I would think would be a fairly growing market (the project studio market.) Randall only sells a 50 watt stereo thingie. You have things like the Boogie 20/20 which is still massive overkill for something like this, and stereo which isn't needed.

I can't imagine why Randall doesn't have an option for a 5 watt power section in their RM4. That would make it a no-brainer flexible project studio device.

Anyway, any ideas on this front? I'd like good quality, but relative to someone who's buying a Randall RM4 instead of a room full of Marshalls and Bogners and whatnot. So maybe $250'ish range or less?