Its 450usd with currency conversion just below 500 and inc conversion if you have master card. They are good as they make them for EMPI in america and VW guys love them saying they are better than the spanish made ones, Chinese quality has changed heaps and these are carbs not gearbox cogs but even now for some time suzuki, Mazda and Mitsubishi have engine parts made in china and assembled in Japan.
I think in many cases (not all) they are better than second hand as you are not risking to rebuild carbs, shafts etc. They are all weber internals.