I didn't try too hard to picture the packaging sizes in my mind. But we have the smallest Sunseeker Class C (2300 model), and it probably could handle your load in the rear pass through storage compartments. Some of the larger Sunseekers, the ones with a walk around rear bed, have huge exterior pass through compartments. Our rig can be bought new in the very low 50's. Another 10K or so would put you up into the mid- and larger sizes.
Forrester is a sister model line handled by different dealers, so you might find one or the other near you.
edit to add: I went back and looked at your dimensions. The compartment itself is big enough, but I'm not sure about the doors. The 25x25x32 might or might not make it through any of the doors in my pass through. Maybe it would go through the rear door, and then slide over to settle down into the tallest part of the compartment. Everything else would fit for sure. You ought to look at some C's, I think.
Whatever model you might be interested in, look for a sales video of it on youtube. Dealers often put them up, and will probably show you the storage compartments.
