TSparks

2001 Dodge 1500 Single Cab Shortbed. I am trying to get an idea of what I should do. I definitely want some subs behind me, and would prefer 12's for when we are out of the truck we can still here the base. Most of the boxes I have seen for 12's are to big to fit in the area and have maybe 1.2' from the back of the cab to where my seats at now. Is there anyway possible I could get some "short travel" 12's or would I have to get 10's? Thanks.