I have both here in melbourne. The drivers one that I have has a partial crack, does not go the entire way thru, would be easily fixed with a good spot weld, would not effect the slide of them at all.
There is a pic.
The passenger, well, the one I have in the shed on my passenger seat is pretty average, needs a good weld to stiffen it up, there is alot of play in one side. The second set of passenger rails, well if they are in better nick then the ones in the shed, i'll be keeping them
No pics atm, beer is to damn nice and its to freekin cold outside and to damn dark to take a pic.
$20 for the drivers rails, $11 postage in 3kg satchel.
$10 for passenger rails, will have to pull them off the seats and size and weigh them to get a postage cost, pm me your postcode and I will get you a prices.
Dave