[gordon]

There's a lot of similar stuff going about as chassis / cabs.

Many of the FWD's started off as snow-blowers, so they had short heavy chassis and no front bumpers to talk of.

In your position finding or manufacturing / altering a suitable wooden cargo body would be the thing. Cab would have to be made too as anything you can find will be in the same state as yours, unless it is mint / restored and expensive - which rather defeats the point.

First step would be to find other people with the same truck, and that might be where MLU could help - of course you don't really say where "up north" is.
North of England, North of Scotland, North of New Zealand, and so on.

GWB, site-maintainer extraordinaire, prefers real names too so we know who we are talking to...

Gordon , in Newcastle-upon-Tyne today