I have a 99 civic si suspension with tein s-tech springs and tokico shocks. My friend has JDM Type R suspension with omnipowers and uk 16 in R wheels. He is looking for a trade plus cash to put his car back to stock and i take his 5-lug plus cash. How much cash should i offer him plus my suspension to be fair and not to screw both of us?

thanks in advance!

 

the 99 si setup isnt worth all that much