FWIW, from stuff we carry along in our 24 foot Class C we've helped:
1. A 5'er owner - by lending him the air compressor we carry along.
2. A TT owner - by lending him the high lift hydraulic jack we carry along.
3. A motorcycle owner - by lending him an unusual socket size we had along in our tools.
4. Our RV'ing companions - by lending them a spare water pump that we carry along.
5. Ourselves - by pruning a low hanging branch with the extension pruner we had carried along that particular time.
"You can't carry too much just-in-case stuff along ... just more than you you can fit in or more weight than your rig can carry."