just turned 21 - but my efficiency in tactical laziness is that of a 45 year old man
there is a lot you learn about durability and making a LOT of big **** fit into a tiny space with Jeeps. its unfortunate that many of the ideas of the Jeep world are only limited in their port to full size vehicles. rarely are they properly executed past older rovers and land cruisers. granted, a full size pickup isnt going to be playing cat and mouse in the rocks like a Jeep will, but it doesnt mean you need to use crappy suspension components or not reinforce the armor underneath. another thing that i dislike is the excessive use of steel for armor - its too bad that people havnt learned the merits of 6060-T6 aluminum yet. if you ever want another side of the story on some idea that you have, im always open for creative criticism. generally inside an idea of mine, there is one very small nearly worthless kernel that can help
rugby is so ************
you could probably build fairly durable slide set for fairly cheap. this is kind of a shot in the dark so you can get an idea. but you could get a set of drawer slides from lowes, i think they range from 15-20 bucks a slide for the heavy duty ones. secure those with angle aluminum (sold in hardware near the glass cutter) for very cheap. i think a 6 foot stick of 1.5" wide angle aluminum is something like 9-10 bucks. then you could make a "table" out of MDF (id seal it so it doesnt warp with moisture) to set your cooler and whatever else on.
however, because you're putting leverage against your table you put in your bed, you'd have to secure it some way, otherwise it'll start moving around.
just an idea