So I took my amp into the shop for the second time in about 2 months and I think I'd like to take dear care of it when it gets out so I don't have to do it again. It's an older Hartke 3500, a one rack space amp I believe. I'm not too versed on cases and/or racks, poking around it seems like some cases actually are racks as well and other bizarre stuff. If I want to protect my amp while schleping it around, what do you guys recommend?