Our present C is a Jayco, see Signature and it had he spare mounted "Lollipop Style" (with a bracket clamped to the 4" square tubular steel bumper) and a cover over it. That weight, bouncing all those miles, started to tear the tubular steel where it's welded to the brackets attaching it to the frame. We reinforced and re-welded the brackets BUT I took the bracket off and put the spare under the bed. Only space that'll fit it on the Escapade. No outside compartment is big enough.
That bumper LOOKS impressive at 4" square but the material is essentially sheet metal. For that reason, DON'T use it as sewer hose storage. It'll rust through from the rubbing and wetting.