I don't know how bad your 3 stanchions are, but I have straightened mine on several occasions myself. When mine have been bent it was the base which was no longer flat, there was no bend in the vertical. I took them off, brought them home and carefully hammered and using a vise too was able to repair them. I decided to go this route because on my 83 Catalina 30 the new stanchions would really stand out from the oringinal ones.