Thanks guys for the input. Was looking to purchase the 20 sceptre that was listed here with the etec 150 on it as we were very close to the seller but turned out we had just missed it.

The boat is for my Father, and we're still looking.

Ideally I'd like to find a little 2s 130 Yamaha as I had run the 115 for many years on a different boat and was very familiar and happy with it.

What is the correct shaft length for these hulls?

Original transom = 20"