if you want to lower your car 1.8" then Pro-Kit isn't want you want because its only a 1.2" drop. I would go for Sportlines which is a 1.75" drop all around. As for the Teins, i believe the SS aren't available for 5g accords only the HA, but from what i hear they are awesome full coilover systems. I plan on upgrading to them when i get more money, i'm currently on KYB AGX's with Pro-Kit.
~Billy