Are there trailer rentals?

I don't think so but I think there are cabin rentals

There are a couple of trailers that are parked on lots there that they rent but they are not for taking to other campgrounds. There are also a number of cabins that can be rented as well.

I only know of cabin rentals. If there are trailer rentals, I'm unaware of it and I camp here quite often.

Yes, they have two of them.