360 swap from van to 74 Duster

hey i have the same problem. i have a 77 dodge sportsman royal with the 360/727 combo and i have a 1970 swinger with the /6, i want to take all the stuff out of the van and put it in the swinger. will this stuff all fit or am i going to have to manhandle my floor/wiring to make it fit? thanks!