MOR-FLO Water Heater
Just picked up a 1983 Funlite (16S) and the previous owner had the manuals and paperwork for all of appliances in the trailer. It appears that this unit has a "MOR-FLO" water heater (and the instructions are for both gas & electric water heaters). I'm sure mine is gas.
Anyway, I should be able to scan this in next week and will upload (and verify the model) all of the info I have in case anyone else could use them! I've checked the rest of the stuff and most is already here.