Lista draws and cupboards of all shapes and sizes, 200kg per draw and you can still close them with one finger http://www.richardsonsuk.co.uk/lista-drawer-cabinets-200kg-drawer-load/c344
Come up s/h all the time for cheap, the amount of gear you can load into them is insane.
What magnets did you end up using eventually?I suppose I had better throw this liddle invenshun into the mix. Its a mag mounted angle grinder rest that you can slap on anything reasonably flat, really useful working off a ladder or plant outside where you dont want to be tripping over the thing or rolling it in mud. Knocked one up and have played about with various magnets and designs , bolted two magnets back to back on the lower fixing for the peg spanner. Takes some tugging to get them unstuck so no chance of the grinder just falling, have ended up making them for everyone that sees it so thought I had better get a few laser cut and start knocking them out.