<div class='quotetop'>QUOTE </div>Mate, why would anybody own a rotary if they needed rebuilding every 100km! Do you mean 100,000km? If so, I wouldn't be disappointed at all with 100,000km out of a motor I thrash.
Revs kill engines, keep the revs down, and it will last alot longer.
<div class='quotetop'>QUOTE </div>FD's are so cheap as well, because as the motors are getting older, they will need a rebuild, don't think for a second that you can import an FD and it wont need a rebuild soon, because you'll be taking a gamble.
There all old cars your talking about, things are going to wrong, and need replacing.