Ian, if you get stuck for a manual for the stern drive shout and I will photocopy mine for you. I turned my engine cowlings round to face aft and yes they fouled the grab rail so had Portchester engineering chop 4" out and re weld it, you can't see the join. The engine lid needed reinforcing though as its quite thin away from the oringinal holes.
The kill switch is a great idea but what are you going to attach it to. (Mermaid do a soleniod for the fuel injection pump which it could be fitted to).
the steering wheel hydraulic unit is a standard taper so any of the vetus ones will fit and alot cheaper than volvo. Think the standard wheel is 16" which is bigger than most but helps with the high speed turns.
Seb still haven't worked out the fuel to any great accuracy but working out about 1 LPM at the moment.
Roohairy, had Flew sails in Portchester make up a seat before now. Just send them the base and ask Mark to recover it.
Crank shaft oil seal weeping at the moment which is an engine out job