Can a DC 5 that is in a head shell be swapped directly into a combo shell? I'm new to Mesas and it seems if the amp is the same,just the shells are different where other manufactures use a entirely different amp for combos than for heads (Marshall) I just bought a DC 5 head but would like the combo option for certain gigs. Is it feasable to switch back and forth or is it a major PITA if possible at all? Also are there specs for a combo shell around if I were to build one? Thanks