Welcome to ExPo, Tom!!!:beer: I know there is a wealth of knowledge on the 80's here, someone will be able to help you. What are your plans for the truck? Please do share, and give us some pics too.
I believe Carl from www.outbackoffroadgear.com is developing a slick long arm suspension as well, which hopefully will be out soon.
*edit* looks like www.outbackoffroadgear.com is under construction - a lot of the links aren't working properly. Shoot them an email and ask about the kit and let us know what you hear.