I had a really old Praktica SLR that needed some repair. Pretty sure this is the guy I was recommended
http://www.yellowpages.com.au/online...z=&productId=0
FWIW he said that parts were usually the problem and probably cost more than what the camera was worth, so I didn't go ahead with it. So as bojan suggests above, perhaps if you find a similar camera on ebay and take both to them for parts?