Wow !!! thankyou all for such a rapid response. From the comments and suggestions It has been made clear I dont have all of the facts. I will do some research on the vessel etc and see exactly what he wants to do with it.
In my opinion he would be far better selling the vessel with the engine though it has been moored for a number of years and im not sure of the condition of any of it.
I will check and get photos and information before re posting. Although I have been involved with narrow boats over the years it is quite difficult selling third party lol.
Once again many thanks for all of your comments, I will forward them (though I will have to print them off)
I will keep you posted.
👍