Paid a visit to the local marina where this little boat is for sale, very friendly chap who spoke with me that runs the place. He said I can be moored up all year and not leave the marina if I didn't want to, went through all the costs involved such as mooring fees, license, cost of diesel/gas etc so have a clearer idea now of what's involved. Had a good look around the little boat, which was nicely fitted out inside and seemed to have been well cared for (current owner had lived on it for a few years and has moved onto a bigger boat). On reflection I would prefer something a bit bigger as my daughter would be staying with me for between 2 - 5 nights/days a week so a little more space on board would be better, if it was just myself I'd probably go for it. The chap I spoke with said that 2 more boats were going to be available in the coming months, a 44ft and a 50ft. So he said I'm welcome to call back anytime if i have further questions or want to see if any other boats are available to buy.
Feeling a lot more certain now that I know I can stay all year round, the mooring fees, license, fuel, electric will still work out quite a bit less than the house I'm in and I should be in a position to buy outright and have some money to keep aside towards any future work that might be needed. It was a miserable day, drizzle and cold but I couldn't help but grin whilst being on that little boat, enjoying the moment. Certainly feels like the way forward.