The problem with the "Voyager" is the inverted engine/high fuel tank location---But the engine firewall mounting holes are symmetrical, just turn it 90 deg. & you will be fine---Yes you will have to cut an opening in the cowling---BTW the "Voyager" is a low wing version of the early "Avistar"---Same wing, same tail feathers (yes I know the fuze is different) I fly one with snow skis, works great with the tricycle gear & the high engine thrust line for prop clearance---