New to the board w/ 20ft CC

[laser]

Welcome to the site. You may want to search the board for comments on a 20 with a bracket. Depending on how soft the transom is a bracket may prolong the need to replace it. Seamark (designed by Potter) sold by Hermco a member of this site has a very nice bracket and they have an insert that fills in the motor notch. I installed one on my 23' when I removed the I/Os and I am very happy with the results. The Seamark also has excellent flotation and gives you a swim platform. I don't know what length shaft you would need with a single bracket.

Good luck if you go thru with the purchase. I love my 20 which I've had for over 10 years and will be very sad to see her go when the 23 is done.
Bill

If 1 is good then 2 must be better!