Spoken like a pilot who knows the real world uses and abuses of such a beasty. I agree, the Superstol might be great as a party trick but the Hornet is mighty handy and has a enormous cargo hold. Ole is in my opinion the best maker of tough stol planes in the world- built for real world bush conditions and strong enough to survive mishaps. The Superstol aircraft are a bit fragile in my opinion esp if all goes to poo - that lovely light structure is not a great friend in a crash.
I am a big fan of alloy covered aircraft with a substantial cockpit structure- the Hornet is all that and more.
Ole will even do a very cool full shock absorber suspension rear for you, if real hard landings are your thing, or towing gliders etc. He also has all the other designs including the new Flamingo- If that machine is not Super stol enough, I will eat my hat. Do yourself a huge favour and have a trip to Taree, call before and I am sure your will have a fun time and get a flight in one of his machines, plus a factory tour. I am sure you will leave with a new understanding of these Stol aircraft.
Then you will be in a much more informed position to make a decision.
If the Rotax thing is a bother- he can do a radial Rotec, a Lycoming, your own engine-say a car motor or even a turboprop if you can afford it.
If it is just cost you could consider a used engine instead.