I carry a small "pancake" type propane tank in my rear storage too.
My largest compartment is the rear passenger (or curb) side storage. I'm not fitting fishing poles in there or anything, but it's long enough for my needs. Fits my camp chairs perfectly (Alps "Gorilla" chairs).
I couldn't carry a ladder, or fishing poles, or even an EZ-Up (I don't think it'll fit anyway). But I don't carry those things in there anyway. That's what the toad is for.
-2018 Greyhawk 29MV
-2020 Jeep Wrangler Unlimited (JLU) (Primary Toad)
-1994 Jeep Wrangler YJ (Secondary Toad)
-2014 Jay Flight 28BHBE & Ram 2500 6.4L CC 4x4 (sold)