cheers for the advice, Tony.
the new engine is coming from Dorchester, so i feel awkward about sounding out somebody i didn't purchase it from.
it comes with a number of (no cost) optionals, which now better informed, i can discuss with the vendor. thanks for that.
because of the expense and age of the boat, if possible, i think we will scrub round the aquadrive, if possible.
(in november, we'll also be craning, surveying, plating and blacking. all of which will spank the wallet a bit).
sorry for my ignorance, but does this mean without the rubber feet?
or 'direct mounting' as our DV20 was? (straight to shaft, via plastic coupler, without aquadrive).