Henry you are a very smart man :P listen to him, rotarys are extremely fun to drive, not a PIG like some of these people seem to think... however anything with high RWKW is not going to be easy to drive unless you go all out and do suspension and brakes etc...
You need an extension housing for the gearbox though as they leave the shifter very far forward, and depending on your driving style can be quite awkward to shift :yes:
It should be kept in mind however that rotarys are NEVER! any good for someone on a small budget as they are a small capacity motor that can run quite efficiently and reliably on low revs and bang for buck can't be beaten... BUT ask anyone who drives a rotary and they will tell you, you NEVER want to keep ya foot off the gas (cos it's just so fun), and they are REALLY complicated and expensive to rebuild...
At the end of the day it's a matter of how much you are willing to spend MAINTAINING your car, not just converting the engine as the list of things to do never ends once you start going for over 120kw at the wheels....
Ausrotary.com is an excellent site for any questions you have for the rotary community however you have a 30 day period before you can post on that site :y:
Good luck buddy :D
P.S. if you want the wheels to go round and round why use a motor that goes up and down :lol: lol