Welcome from Illinois, tyke. There is a WTB section in the for sale area. Take your time, maybe try posting some pictures of your ‘55 here to get some practice. Sometimes photo files are to big and need to be reduced.
As far as the WTB ads you may post for parts, adding photos is helpful. One warning though about scammers. As on other sites pm’s (private messages) will come to your box and if someone has a friend who has the perfect parts you need but doesn’t have photos and vague information be careful. You can start a post in the “general discussion” area and see what other members think.
Good luck with the New Yorker!