Alum. flatbed input.

I have 16 year old EBY aluminum flatbed that has held up well considering it has doubled as a plow truck for that many winters . Looking at their web site it seems they will do some custom work . I closed in the sides with pt plywood swing down doors , not weatherproof but lockable .I use waterproof plastic container for items that need it. Very versatile as the space can be rearranged as needed. I use Anchor Guard front (short) spring loaded tie downs at four corners to 1/2" D rings bolted through the bed . I reinforced under to spread the load over 3 cross members . I remove the manual jacks and store between headboard and camper , I only load and unload once a season . This is only one way of dealing with a flatbed .