5.0 swap in 86 b2

[kaytor692]

i recently found a 5.0 out of a 87 crown vic that a buddy has and is pulling out. the engine comes with full wiring harness and he only wants 100 bucks for it. he says it runs great (soo im told) but theres no transmisson. i wanted to no what would the best transmisson to put behind this if theres more then one that works in the b2 also how much of a pain in the butt this swap will be and if its even worth it or if i should just go with the 4.0l instead. if someone has down this swap and has some advise that would be great thanks