I don't think I've ever seen anything for a mid-sized truck, but certainly for a 1/2 ton.. quick search pulled up these beauties https://www.marlonproducts.com/products/truck-decks/truck-decks/. No idea what the price point is but any rack system is going to be very expensive that's for sure. Everyone has seen disaster videos of sleds getting up on trucks. If it was me, I would just do a trailer, that way your sled has a summer home and easily portable at that time too. Good luck with your venture, it would be cool to see what you end up with.
what about this unit? honestly I don't think I'd want that much weight on my gate but this seems simple...
That looks like it could work since it's 119x48in but agree it's a lot of weight on the gate. I found their web site and a few reviews mention using it a 5.5ft bed but don't see any with a 5.0ft bed. https://www.dgrpramps.ca/the-dgrp-rollable-ramp/. My Doo 137in sled is close to 120in overall length and the center of gravity is near the front axel. I feel like that would be very close to the end of the 5ft bed. I've seen single place sled decks before but seems like a lot of weight compared to this slide in. Personally, I think I'll stick with my 12x8 enclosed Nitro trailer.
That looks like a pretty sweet setup.
