I have a Mesa D800, love it, its going no where... i also have a Subway preamp pedal for my home studio. I am looking at a backup amp for gigs in the rare event the Mesa breaka down. I tried some GK things but that didnt work for me.. what budget head will get me closest to the Mesa tone? Peavey minimax? Fender Rumble? Carvin BX500? Have about $250-300 to spend on a used head. I could pick up a power amp and run the subway pre through it in a pinch, but which of those (or other sugesstions) will get me close in that price range? Using a berg cn410 and various musicman basses