I know Frog, he says he has 100 sets of em too! The tappets may be the simaler VW ones though, which would lower the price a bit I spose, but even so, aren't proper valves alone worth £350, even from some like Simon Lester at Woodford who is, IMO, the cheapest anywhere. I'll take no less than £300 for the lot, that's gotta be a good deal.
Andy