if it helps anyone who is looking to get some work done on their boats then i have used the following companies for the supply, manufacture etc of various items for my boat and the individuals and companies have provided excellent support, willingness to meet custom requirements and have given very high quality with a competitive price.
For the tubes i have used RibCraft in Yeovil, they are happy to do retubing work for many different types of boat as well as supplying their own excelent line of boats. They are well regarded for their quality of tube work and there are plenty of ribcrafts out there for you to check their work. I will post some pics of the tubing when i pick up the boat.
For the stainless steel work for the boat I have used Marine Fabrications, they will manufacture pretty much anything you want and are extremely helpful, Ask for Mark, everyone who has seen my stainless steel work has commented on the quality of the workmanship
For the upholstery I have used MasterTrim, Loui is the contact there and they are willing to undertake any work you require and to your individual specification. I will post pics of the upholstery when i pick it up in a couple of weeks.
for the trailer i have purchased an SBS ELR2 1800 single axle which takes a 1400kg load with a total all up weight of 1800kg. The trailer tows very well and has many significant design benefits over snipe and hallmark (i have a hallmark as well) and again they are easy to do business with.
For the engine and many of the various components for the boat I used Ron Hale marine. Ross is the contact there and they were very competitive and helpful with my requirements around the engine and its fitting and also the supply of various ancilliary boat bits and bobs.
for the steering I have used Sea Star from Hypro Marine, again very helpful and easy to do business with, the kit is very high quality and has a great reputation. contact there is Steve
for fasteners i have used protex which are great but expensive
Thanks to those that contacted me with recommendations of folks they had used previously, I contacted a lot of companies both local and distant and I found the suppliers I have listed to be the best balance of Quality/workmanship/ease of doing business/competitive pricing/genuine people
good luck with your own projects..