Hey Dave,
73500.com - Id be willing to go mid $xx, even higher $1xx depending on marketability. From a Chinese perspective the numbers are odd, which is not good according to what I know, then again it is a nice round number.
for the other, taking the Chinese route, your 8 pair with 9 would outweigh the negative energy of the 4 if someone wanted it from that angle, but no 4 is always better.. Id be willing to go $10-15
hth
Mike