5.8 Lightning motor and trans

I,m thinking I want to drop the drive train from a first generation f150 lightning down into my 68 ranchero. Seems like everybody is doing the 5.0 conversions to there old fords now-a days but I,m thinking why not the lightning motor? Has anybody here been down that road or do you know where to send me for more info on this?
thanks new guy dads 68

thanks for the welcome and interest

I was hopeing to find a compleat lightning in the junk yard and did yesterday but it was missing the intake manifolds and I understand the aftermarkets give hood clearance problems. But then, cause of cash for clunkers, they got to crush the block and so they guy would.t give me a package price and the seperat parts started to add up real quick and I wanted a whole truck to pick over and sell whats left like you used to do but it ain,t happining.And I bet your right the E4OD is big but I could work that out. And I,m hearing that speed density isn,t so bad to deal with and that the E4OD in the lightning is a beefed up version and it likes getting it.s orders from the speed density program so thats the way I would try to keep it. Maybe I will be happy with a stroked out 5.0 mass efi aod but still have my heart set on 5.8 lightning if I can find one. I know they only made 11 thousand 1st gen lightnings so there hard to find but a 68 ranchero lightning would be so cool.
I know there has to be others out there that have been down this road before me so turn me onto them if you can. Thanks again