I see no reason why you couldn't pull another small truck with it since it has a v8, but I'd look into some add no rear springs, maybe something removable if you don't want permanent. Especially since you're only gonna do it occassionally. I'd also look into beefing the brakes as much as possible. I've pulled another toyota with my 81 2wd toy when it ran on 3 cylinders and it still towed fine, and the brakes worked fairly well.
