Thanks for all the replies guys, much appreciated. I bought the 380 direct from Bombard today as it was the cheapest. Will have to wait a few weeks tho as it will be coming from France as they had none here in the UK. Don't bother me as it gives me time to hunt down an outboard.
I love the idea of the Tohatsu 18 but have a better chance finding a virgin in Manchester. The Suzuki DF20a seems like an option but might be a stretch budget wise and not sure about going down the 4 stroke way.
The head says a 15hp 2 stroke but the heart wants a 20/25... My old Johnson 30hp nearly gave me a heart attack moving around so fully aware of the weight issues. I'll be fishing or diving 2 up with gear most of the time so don't want to sacrifice to much in performance.
Those Zodiac launching wheels are silly expensive. Does anyone use a suitable alternative?