Simon,
That would be great, I'll PM you my address. We measured up Rippos truck and what was left of mine, but they all seem to be slightly different. We've nearly finished the hardwood base frame, just got all the edges of the planks to chamfur before we can start building. I've got hold of as many whitworth coach bolts as I can find, I'd like to keep the original square nuts. Screwfix have just stopped doing those screws, luckily there was a cheap stockist on the internet so have ordered plenty.
There are some pics of my donor truck here!
http://hmvf.co.uk/forumvb/showthread.php?t=10384
Chris