Hi Walter,
I thought you might be interested in this:- at the weekend, I attended the Midlands Model Engineering exhibition in Warwickshire and a Foden lorry like yours was on display. Apparently it was made from a kit produced by Reeves which is no longer available. It is powered by a Honda 5hp motor, has working indicators and hydraulic brakes on all 4 wheels and is driven through a flap in the back of the cab though I don't know how because it has a tiny steering wheel offset to the right and well forward inside the small cab and no seat to sit on. The owner had printed a good description of it and said the wheels were no longer available which is why they didn't match the curvature of the wheel arches.
There was another similar one but a tractor cab outside in the camping area. Also a Toylander tractor. Plenty of small steam engines and I think it would be a good exhibition for Richard to attend.
Regards
Mike