Supplying power to my camp with a generator
If your gen hasvoltage fluctuation better than regoular incandescent 220V output, it's better (for gen. health) to use both phases and balance the circuits across them, if your gen is 110 only... you havn't asked the question.
I suggest not to use electric hot-water also but to run it on LPG .
If you consider keeping the generator running all the time, electric fridge is better then LPG-fired. 

For lighting I suggest to go for LEDs, now it's cheap and tolerate voltage variations better than a regular incandescent/halogen. Also will give you more light-hours without having to refuel or more light for the same power.

Also suggest to install breaker (on outlet circuits) that, as total, won't drain more than 80% power capacity of your unit (remember you have also  lighting). So if your gen is 5,5kW/220V 2-Ph, your 'general breaker' shouden't be bigger than 5500/220 = 40A and 'outlet' breakers souldn't be bigger than: (40 x 80%)/2 = 16A for each 'leg' if you have 2 outlets' circuit

Note: protections are kept 'low' (compared to standard) to avoid overloading the generator.

Edit: if you don't have a 'utility' power connection to your panel, you can connect the generator directly as 'main' supply, without the need for an interlock (as the generator will be the only source for your power).