Brad, you need an old fashioned steamer trunk - the sort that opens like a wardrobe, so that one side would hold a fold-down workbench, the work-in-progress and a clipboard for all your tools etc. The other side would consist of drawers full of paints, decals, glues, brushes, files etc.
Thus on entering new home you just swing open the trunk, plug in the compressor and off you go.
(Obviously you'd still need the 120 storage boxes for the stash.....)
Sandy