Aluminum trailers will work for an inboard. The only modification I did was flip the bunks over. They were beveled for a deep V boat so I flipped them over to the flat edge to better fit my flat bottom boat. Loading is a bit trickier especially if you have any current but it's not to bad. The bad news is brakes - it does not have any. The good news is brake maintenance - there is none!
I pulled my painted steel trailer around for a year with no brakes (the brake lines rusted out). I put into salt water frequently and watched my trailer quickly disintegrate in about three years (I also had it stored near a salt water lagoon for about 1.5yrs - not good!) Anyway, my Z71 with it's four-wheel disk brakes does a pretty good job stopping even with out trailer brakes so I decided to go with a Fastload aluminum trailer and leave my rusting trailer problems behind. I think you can get them with brakes if that's a issue.