A couple things to know. Not all your navy training is credited as approved USCG training. Just as some of the USCGs own training for their own personnel does not count towards merchant marine training! Some is! Get records of ALL of it. Some of the training is acceptable! I am sorry, I don’t know which is which. But get as much as you can documented, and let the USCG evaluators figure it out. The required courses cost about 1000 bucks a piece. Even if you only document ONE usable course that will save you a grand. Hopefully you can get a couple accepted.
As Boats said, get your letters that were signed by the officers who actually observed you doing it. THOSE are usable to get your seatime requirements in to get some help to get an endorsement faster. Some letter from BUPERS somewhere in Iowa (or wherever the schmuck who does data entry is sitting) is useless. Any letters must be from the guy who saw you working.
What you are talking about, by saying you wont submit ANY navy info, is like saying you are willing to start out on the bottom rung, and earn the time to qualify to take tests, courses, and training. In this economy there are HUNDREDS of guys like you who are starting out from the bottom. You need to work to get every edge you can to climb to the top of the pile so you will get hired first. It may be a pain in the ass, but you need to grab all the help you can to get off the entry level position and get on the ‘somewhat trained,’ ‘some experience,’ ‘already in progress’ list of applicants.