How much of the truck back wall can you remove where it meets the conversion wall?
How much of this wall has to be remaining so the rear truck wall can fasten to the forward conversion wall?
And is the attachment solid from one wall to the other or is there a rubber boot between the two walls and a flexible connection?
"I have marveled often at the thin line that divides success from failure and the sudden turn that leads from apparently certain disaster to comparative safety." Ernest Shackleton, Antarctic Explorer, Sea and Land, 1874-1922.