Thanks Skimmer Fan for the information regarding motorising a Mountfleet Lighter, I sent for and have received a back issue of Marine Modelling Int. and it covers some of the basic principles of the conversion. Still undecided what to build and remembered the other day the petroleum barges that used to come up the River Trent to Colwick fuel depot, could be an interesting project but would the Mountfleet Hull convert.
I have found some , not many, pictures of the barges navigating their way up river but need to find a photo of a hull out of the water. Where would we be without Google and the hunt is on. Might be worth a visit to Yorkshire Waterways Museum.
Anyway thanks for the help Chris G