Hi Tony1,
If you are after a good GRP boat, look at the Highbridge 32. My wife and I bought one a year ago and love it. They are few and far between for sale and as such command a higher price, but they are well made and the original layout packs a lot in. We have an acceptable saloon seats 4 comfortably (converts to large double bed) doors to front well deck (seats 2). Then going back over we have to port, solid fuel stove, dinette, shower/toilet room, single bunk, steps to cruiser stern. from the saloon back on the starboard side is the 2 burner cooker with grill and oven, 8 feet of work bench with storage and fridge under, gas water heater, double wardrobe with shelves, single bunk. The cruiser stern is nice, the inboard diesel is under the seating. Forgot to say it has a 55 Gallon (250 litre) water tank as standard. So all in all, it will sleep 6 (you'd have to be very good friends) has a good size water tank, inboard diesel and solid fuel heating, and looks like a NORMAL narrow boat. We love it and plan to live on it in a year or two.
The only down side is it has and outdrive and you are seen to be a second class narrow boater as it PLASTIC
Hope this helps
Please sorry about any spelling mistakes ( I didn't stick in at school )