Some ideas
Sailorman is a great spot for getting lots of used gear and some new, but the word is they are soon to be sold out, so the long tradition might be ending soon.Garhauer is a great place to get custom stainless steel work done. They have a catalog of usual stock items, but if you have, for an example, a stanchion you need duplicated, they most likely can do it for you if you provide a sample for them to work with.As already mentioned, Bacon and Associates on Legion Street in Annapolis, MD is a great source for used sails. They have sails from dinghies like Optimists all the way up to Whitbread boats. Huge selection and they are wonderful to work with. If you don't like the sail you bought you can return it for a full refund within a certain window of time.Tops in Quality is also a good source for new lifeline stanchions. They are located in Michigan and have a stock of lots of stainless boating products that involve tubing, like rails, stanchions and ladders.Good luck