I checked them out, but they are indeed no longer selling their items. That's too bad, since it looked perfect.
This one looks awesome, although that's based just on appearance: http://www.simkits.com/product.php?prodid=616
but I can't quite justify $29,835 plus shipping! I bet there are some used ones around, but it would have to be someone relatively local.
Any other options? I can't be the first person who wants to use MSFS to get comfortable with an R22/44.