As Richieboy will know better than me, the very sprightly Sierra Leone 85 is limited in what she will pull by her 15 tons of adhesive weight. The L&M Kitsons had no more adhesive weight but around four or five tons of additional mass to haul around before any horsepower appeared at the drawbar to pull a paying load. Thus, curvature permitting, the original Barsi 0-8-4T design would be better for the W&L. I think that the Calthrop/Leeds Forge demonstration line in Leeds used one of the 0-8-4Ts, so a replica could be justified for U.K. use. Even so, this design would have no better adhesive weight than a W&L Beyer and would still have extra weight to lug up hill. Paul H.