escalade rims and drop spindles

i'm getting ready to bag my truck, just collecting parts write now. i've got those pesky escalade rims and am questioning their tuckability. Would drop spindles help with tucking, or inhibit the tuckage? would drop control arms help with tucking, or inhibit the tuckage? would a modified A-arm be more suitable for tucking? would a mildly flaired bed be necessary for complete tuckage in the rear? thanx for your time and advice, -mike