The OP's Jayco Hummingbird is an ultra light trailer.
But IMHO the Boy Scout approach should be the same whether it be a trailer, a 5'er, or a MH: To help maintain the full self-containment capability that it probably came with while out on RV trips containing some camping without hookups - and the unexpected happens - a Plan B consisting of a generator to convert the entire RV to all-electric - above what solar can provide - can be a trip-saving thing.
However, that's just my thinking based on our sometimes taking RV trips of many thousands of miles requiring the flexibility to reliably camp in both hookup and non-hookup places.