Sealine Boat 218

Sealine 218 Early 1990's Mercruiser V6 4.3 engine starts and runs, BUT, it doesn't want run for long at a slow speed. Engine had new plugs, fuel filter, fuel pump and a new alternator with new belts. I believe there can"t be much wrong with it, but I'm no marine engineer. Left trim tab doesn't work. S.B.S Trailer, is quite old, 1984 but solid.
Rated to 3500kg. Last year had 4 new tires, new brake shoes and new cables. Has done no more than 700 miles since. The bracket for the hydraulic pump (for outdrive trim) is in need of replacing. I have new bracket.
Boat is in reasonable condition for age.New fire extinguishers.Working electric fridge. portable toilet. Hot and cold water. Canopy is good. There is a winter cockpit cover, still use-able but seen better days.
There is an anchor, 4 fenders and some mooring ropes. It does not have a B.S.C. Boat is in storage in Warwickshire. I can put it on my drive and with a hose show engine running. You will need a reasonable 4x4 to tow these boats.
I am open to reasonable offers. Payment by bank transfer.