You can forget higher speeds as 50M/80K with a OPS 60/11cc
Buy a wood-kit to your likings at Joe Petro from
http://zippkits.com
Make yourself a member on the Dutch
http://www.xtremercboats.com
As OPS is a delicate engine .. a complet check-up/overhaul is advised.
Due to the fuelcosts in NL 10% nitro 15% Synth/3% Castor oil and type 6 glowplug will do the trick.