Thanks for the kind words, all.
still have the Russ's waiting to be finshed (5 or 6 I think) waiting for the "right" boiler may get around to finishing them 
Well as you can see, the Black Pyramid boiler just fits perfectly on the Russ's rear hull.
Nice, good buy too. Better than paying GW prices for a model to convert.
The downside is you have to deal or live with whatever the original builder did to the model. Like all of these tanks having the left and right tread facing in opposite directions, which seems weird to me. Or the two I'm working on at the moment, where the builder thought gluing down the turret was a good idea

Dr V