yeah the MHZ 6's twin set-up was around 1500.00 + then if you needed the gear boxes for a single twin drive etc etc. I have two sets never used 1 set on a Bonzi 84" Apache and the other set just sitting in a box now for a few years.
I've been looking for somebody that makes a 72" "Cigarette" hull and not an Apache for years now. Ren3 : boat looks good and is big but I've been looking for the 72" Ajack Hawk boat that PI/Black Hawk Hobbies used to build.
Maybe somebody can retool and make an updated version of the Cigarettes, everybody builds an Apache in the R/c world and it's Annoying.
I also have a 43" team USA from Aeromarine with a J&G 25.6 cc Zen and a Hoover Hydro with same engine from back in the day. I used to race in a club in Elyria, OH The North Coast Pondhoppers they have some of the fastest boats in the nation in the club many over 100mph