This is something that I'm already wishing I had done years ago. Have bought/sold equipment when moving over the years whereas if I'd built the service trailer it would have saved lots of money in the long run. Plus having the tools/equipment on the trailer shaves a few thousand pounds off of the pickup.
The goal is going to be similar to this one.
I had been tossing around the idea of using the current 9ft bed that's on the pickup right now. Searching the local classifieds I came across this 11ft bed that was in much better shape for cheap.
Plan was to eventually build a trailer chassis for it until a friend found a lightweight gooseneck for cheaper than I could build the trailer chassis. It's on a pair of 3500 lb axles which should be enough for this build since the truck will take care of the larger crane needs.
Can't lower the bed down to the trailer chassis because the frame is too wide and the boxes are too deep. Even if I cut the service bed to make it wider for that and the outside edges of the trailer off, it would be past 9ft 8in in width (way too wide). The top of the service bed is 6ft so leaving it at that height is ok (I'm 5'10"). Going to remove the boards from the outer edges of the trailer deck which will lower the bed down about 2in. Am going to mount some boxes under the deck in front of the axle as well.
Some of the main goals for this trailer:
Easy access of everything from the ground.
All the tools/equipment I have/use on it. So welder, metal working stuff, fluids, hand/air/electrical tools, etc.
Waste oil tank.
Parts (not a big inventory by any means).
Small crane (1 ton) at the back. Mostly to help with assembly/disassembly.
Couple lights.
Awning. I'm a redhead, me and the sun don't exactly get along hahaha.