DAG, your video I'd not me. Lol I am far slower. I believe that is a kit maker in NZ. I think he calls his boats black fern or something with fern.
Hamm's has been powering my jetskis for a while. See my Superjet below.
As for my boat, thanks to everyone for the kind comments. Progress is a bit slow for various reasons but I have some updates. I finally planned and built up some fuel tanks. I decided to do duels with a 3/4" crossover tube so filling wont be an issue. They will be connected all the time. Fingers crossed they work well. Combined capacity is just under 14 gal. Same as the WaveVenture tank although i sorta regret not making them bigger now. If I go camping up river i can always pack a fuel can I guess. My buddy has a lathe so I was able to make thread less hose barbs and mounting bosses to weld on. Using the Yamaha fuel gauge and pickup. The tanks will sit in the back and be hidden by a transom board. I have way to many hours into dreaming up and making these things. Its almost embarrassing. I also made a battery box to sit it tight to the driveline. The plan is to make an engine cover with everything under it and have walking room around it.
My SN bottom for the Hamms fans.
RSRACECRAFT.com is the American distributor for wattscraft kits. Ronnie and his wife are nice people to deal with. Depending on your skill level, what tools you have, and what parts you use the price can really swing. If you make your own pump tunnel or use the Jetski one that is a huge savings alone. Also depends on what level of interior and stuff you want. If people are curious about stuff just ask. I have learned a good bit the hard way.
Also keep in mind that the kit is just the bare hull. No pump, no tunnel, no seats, no mounts etc. Just the tin can with a dash and wind shield. The rest is up to you. They offer several part options to complete the boat if needed.