I would recomend a good 90-91 4-stroke for just about any 60 size ship pattern or otherwise. I have a brand new one on E-bay if your interested check this link:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1718238845
If you wish to buy it directly, I am asking $250.00 for it and I will cover shippping (within US).
Thanks.