As far as the price, it's too steep for me but then I don't own an A5 either or it may be more tempting. It wouldn't have been made if there was no demand for it though so I expect it'll sell even if at low volume. Pretty cool idea though. I'm glad that there are still companies out there making product for "old" guns to keep them chugging along.
I'd pick it up if I had an A5.