5.7 / 6.1 hemi in A body

IMO I would get either 1 or 3, dosen't matter which, they are both the same. You do not have to change lifters unless you are doing a cam change, just leave the solenoids in. You will need a new oil pan and pickup, check Milodon or Canton. Shop around ( XV is pricey ) check Street & Performance, Boucillon performance. A lot of guy's use Photobucket to host pic's. Good luck.