Jeeper - Funny you should mention "chainsaw" - already using one and it works great...

With the small electrics you don't have to worry about kickback .... at least so far
Also - after debating on how to section (puzzle piece) my plywood together I think your are right - I have decided to cut the top out and work with one piece. I guess this is now an inside/outside transom job.
"TRANSOM TREASURES" - having read many other posts about what was found in the old bildge of these old SeaCrafts I could not wait to cut out the original "baitwell"
SHOW ME THE MONEY - Coin collectors should start refirbing SeaCrafts - Several 1960's vingate silver quarters and dimes - might pay for my transom... He He
Anyway - Took off work tomorrow and I am going to try and get as much old wood out of the transom as possible.
One question - my boat had (I guess) a factory installed transducer -
Should I do anything with this or just leave it as is and work around it????