Would be nice to enable all features of the card but as I lack the ability to program eproms myself, the "kit" solution could be a nice and cheaper way. Better than than importing the cards with a hefty price surge due to taxes and shipping costs....
What features are you missing? Yes, the cards currently run at PCIe 1.0 speeds but in my experience this doesn't have a huge impact on the overall performance, I certainly haven't noticed anything while running games. You should be able to just update to 10.7.4, install the latest driver from the NVIDIA website, then plug in your card. This seems like a much simpler and cheaper solution, at least in the short term, no?