Thank you for your helpful replies, that opens the options up a bit!
I must remember to ask/ look at the cooling system too. Would a full boat survey confirm the cooling system on the engine or would I have to trust the broker/sellers advice? Sorry, I really don't know much about engines. I do have someone who will look at boats with me to advise me as much as he can about the engine side of things.
As regards the bowthruster, I think I will probably choose the boat I like best then. By the time I have got it home (will take some crew to fetch it home) I would know a little bit more on how well I can handle it. Hopefully I will get to keep the water storage, I wouldn't really want to compromise that so really useful information, thank you.
I will definitely look into some handling courses, I was reading about those on another thread so will look into those when I finish work in March.
Thanks again,
Jill