guessing you reached out to Balance Motorsport to see if they could remedy the issue or answer your questions? Were they the only vendor you tried to order the KW suspension through? Just wondering if someone else would have had it in stock.
I'm sorry, none of this really helps to answer your question, but it just seems like you should have been able to find the right parts for your application somewhere.
1993 Nissan 300ZX Slicktop (Oxford Gray Metallic) 1992 Nissan Skyline GT-R (Gunmetal Gray) - Long Live the Z and Godzirra! - "Love cars. Love people. Love life." - Mr. K.