buy a good pair of wire cutters if you don't have them and keep a nice supply of zip-ties around. I buy them in bulk!!
I don't use after run oil. I just make sure I burn my last tank of fuel dry when I'm done for the day.Then When I get home I will prop the fuel tank lid open for a couple hours so there is no moisture build-up Sometimes they sit a week or two without being ran and there is no problem but If they will sit for an extended period of time I will remove the engine from the buggy and preserve it.