WTB or WTT procharger 8 rib setup

[ChiDiddy]

Just bought an f1a procharger and turns out i need to get an ati harmonic balancer which i dont want to do,considering i am not going crazy for ponies. 8 rib will be perfectly fine for my goals, therefore i am willing to trade someone straight up for my 12 rib setup with a 4.25 pulley.

I would rather trade than buy, but if you have one for sale, send me the price.