Colin, that was my fault, I shouldn't have typed 385's at all...put that down to me forcing myself to imbibe in a second glass of Bushmills.

My Revell Titanic had two 280's independently controlled and that worked fine, overpowered if anything.
Dicky...thanks for the link, young sir...that's saved me a lot of googling. I've actually managed to download a copy of the SHG catalouge.
And Mr MoreCoffee...wow, that is some build that guy's doing, far beyond me. Thank for that link, now bookmarked.
Rich