my buddy has a boomerang and it is an amazing slalom boat. 32mph has almost 0 wake. turns on a dime. he skis at 35-36 and when driving, i can feel the boat moving a little when he cuts hard, but otherwise, it's a real stable platform.
I thought the kanga was the replacement for the 'rang and came with an open bow and a few ft in length, but basically the same boat..

parts are getting a little hard to find, but lots of aftermarket pieces to make it work and the engines are a basic ford/pcm 351 block.