Blichmann is doing a Pro Series now and they actually have a 3.5 BBL electric brewhouse that is a great value ($14,999 turnkey with all pumps/fittings/hoses etc.) and may suit your needs:
We bought one of these to dedicate to tap room and one off brews at our brewery. The customer service has been outstanding!
I know it’s not direct fire but I hope this helps! (And I do know they’re working on developing a gas version so you may want to reach out and ask about that anyway…)
True Respite Brewing Company