I'm awaiting delivery of my new all aluminum mc trailer, bought off ebay. Since it should be nice and shinny being new, how should I keep it looking that way, or should I even try?

Clear coat (rattle can): how long would it last, and how would it look if/when it starts to peal off?
Wax: hand or power buffer. An annual application to keep it looking nice.
Nothing: let the aluminum oxidize, fade, so it is no longer shinny.
I'm not one to even polish my own bike, so don't really like the idea of doing anything. But if I let the trailer fade, and later decide to have the polished look, it will take some time with a power buffer to polish it back up.
Maybe wax it for now, since it's not permanent, and see how I like it.
I want to add in a small battery and a solar charger, to power an electric cooler. Figure I could also charge either small electrical items (cell, tablet), or even jump start another vehicle. Maybe add in some LED lighting?
How about the addition of a swivel coupler?