Good to hear Steve,
I've done plenty of searching for the new 60 Suzuki (spoken to Haines and US dealers), and
i'm sure you will find the new 60hp Suzy will weigh around 160kg. Not good for the 60, but great for the 90hp which will also weigh the same.
I doubt you will find any advantage from a high thrust model Yammie. With a reasonably light boat like yours, i thought the normal engine would be better suited. Do you have a need to spin the bigger prop?
Check out
www.seamedia.com.au, and look at the Profish 485 we had. I took it to Fraser, and it had a 60hp 4 stroke standard Yammie on it, for a pretty heavy boat. It was no speed demon, but handled it quite well. Find the actual figures on the site. Fuel consumption was incredible. Unbelievable!
There's quite a few 20" model's around second hand at the moment (I know I find them all, but need a 25"!) The prices are quite reasonable, and about 3-4k cheaper than new.
Some more options for you.
Regards
Darren