The early issues had these parts. Funny thing is, I have about every version of this kit, and I could only find the tonneau in the candy-stripe box issues, the Ford dealer promo and the one with the red "highboy drag racing version" on the side. Replicas and Miniatures as well as P&P resin works have the parts youre looking for. I cant vouch for the R&M parts, but I have the P&P ones. The tonneau cover sorta fits. Then again, it sorta doesnt. Heres a pic of it.