Go Devil of Utah is located in Riverton. And yes the upgrades can add up but if you have to keep weight down then it is an option but if you dont need to worry about that or if you add something to compensate for the weight then you might as well buy the biggest motor that you can afford
One thing to think about is that the 23 has performance upgrades available, so you can add some more power if you need it. The 27 kohlers dont really have much for upgrades. The 23hp are little screamers and while a 35 could work on that boat, it is a little much for that narrow of a boat...
we are a dealer for them. we did an insurance claim for another customer a few weeks ago with the same problem. someone ran right into the back of his boat and destroyed the trailer. Give us a call and we can see what you need.