Building the Rotax 1100cc two stroke engine.

This engine is from collected parts at our local metal dump. I’ve based this engine upon the Rotax 550f, it’s a nice simple engine that I think will be able to create a Frankenstein from. Plan is to take this through to a finished skidoo. Not sure if this will be a performance or workhorse engine we have that yet to find out.
My other options were 550 Polaris or the 540 VK Yamaha engine.
There is potential for a second machine using VK parts as I have an engine casing.