Hi overboard. Seems we're both in the same boat, so to speak. I have an 87 Fishman 20 and I'm in the process of doing the same bracket conversion. I've taken the old transom out and I'm beginning the rebuild in a couple of weeks. If you'd like to compare notes, I'd be glad to. If it helps, there are a lot of picutres of the same type of conversion in the project boats section of classicmako.com.