Its a local used sale that I might be able to barter down to 300 however, I do not have much experience with GK Heads. I'd be pairing it with an Avatar B210 Neo and SB112. Would the GK head supply enough power for the two at 4 ohms? I'm trying to get a fairly warm, clean, low end tone with some decent mid range growl when needed. Or would I be better off with a Little Mark II?