Have you had any FORMAL discussions with Tyler-Wilson as to what you want, shell/layout/fitout/paint etc and sat down and drawn plans up and ACTUALLY placed an order or are you just another potential customer to them? As I'm sure there would be a formal legal contract between yourself and Tyler-Wilson involved and deposits paid, stage payments discussed and final balance completion/delivery date given if you have actually placed an order as this is a long standing Narrowboat building company with an excellent reputation, so your contract wil be with them and not Anthony M who may indeed do the fitout but all monies will be paid to Tyler-Wilson whom you will have the contract with. As you say you have reserched this for the last two years, but you still seam very unsure as the procedures and to what you want. They probably deal with many people like yourself and alot of people who waste their time living the dream, so you need to start doing this on a formal basis and sit down with Tyler-Wilson and discuss these contracts and concerns to have peace of mind and not tie your head in knots on these forums.