bigredxit,
May I make a few comments, which I hope you won't take offense to?
1. NO, I didn't do ANY research prior to buying the little runabout, as I had to make a "snap decision" to buy/not buy the hull/trailer, due to its EXTREMELY low price.
(The asking price was so low that I could sell it by the pound as scrap metal for about twice what I paid.)
2. AFTER the purchase, I found out that Cadillac tin runabouts are QUITE SCARCE in "restorable condition", much less in the overall very good condition that this one is.
3. I have "access to" most any year OMC "BigTwin" outboard, to match by year to ANY hull from 1955-1970, through a TEJAS Chapter, AOMCI friend in Houston but I need to know for SURE which year that the hull is.
(He has probably at least 300 "BigTwins" in his collection, including a FEW new-old stock OBs and at least 2 "matched pairs" of every year "BigTwin" ever made for sale/trade.)
4. I suspect that I'm not the only "tinboat restorer" on this site & further suspect that you've made few friends among "restorers" with your post above.
5. When one is seeking "difficult to find information', it pays dividends to ask LOTS of people in numerous places, as someone LIKELY knows the information.
and
6. You might consider consulting the message immediately to the right of the logo on the "home page" of this site.
just my opinion, satx