I believe the 1500 weighs 45 pounds. Th rest of your gear will run about the same - total around 90 pounds, plus the bike and trailer. What do you do if some key component of all this gear fails to perform, rendering you immobile?
Idon't know what medical equipment is involved, and that is somewhat irrelevant, but you should be thinking about, and planning for, worse case scenarios.
"If anything can happen, it will..."
one or more gifts or other benefits from the co-op.