Unless you need the 450 (elevation), most would rather change props than pay for the engine upgrade. On the Supra line I have seen the 450 command an extra $1500-2500 in the used world. I believe the new price upgrade is $4k+.

When did Moomba go to the 1.7 v-drive? To me that is what I would want in a 2019, 2020, 2021.