Fordracing

Hi everyone,I just purchased a granatelli k-member. I was trying to run stock suspension. Im not sure if they sent me the wrong k, but I cant put my stock springs back on. I didnt realize it untill the k was put on. Some one told me I should purchase the granatelli control arms and I have to get coil overs. My question is can I just get the coil over springs and mount them on my stock shocks or do i have to get the whole kit. Any info will be great thanks