Viner are very good frames. I was told by someone in the UK that they've just folded shop, about 2 months ago, gone, so the frame can only increase in value. Good frames, especially for bigger riders, one seems to find them in large only. I have one which is a 59, not restored yet. 600 did come out with biopace, I bought a group in about 1988, which was aero brakes and biopace, I think 1988/89 was first year of biopcace. Shimano 600 is a good groupo, but not really for a collector. If you check on eBay you'll find that Campy, even the 600 equivalent, goes for double the Shimano price. A good way to check on value here in SA is to check the price overseas and then drop by about 1/3. Have a look on eBay, at the buy now prices and 1/2 these. Look on www.lfgss.com and look for Viner. Whatever the price is there, take of 35%. It's rule of thumb, but that seems to be about right for local prices. Just looked at LFGSS and Viner bikes with Campy seem to run about £300 - £400. So if you take 35% off and multiply by 15=R3500. But remember these are with Campy, so my guese is about R2000, as quintonb said.
