the connection between the camper and the cabin will most likely be somewhat like a duct made of rubber. something like the ones in an l300. I still have to ask if that's possible.. .

The 2 S8L7's will be ok at the back of the rear seats. According to Intense its possible. He has done the setup already on one of his customers.

It's either an S12L7 at the pickup bed with the glass out and the cabins connected or go for the the subs at the rear seats. Which would be better? hehe