5.0 Swap + Tranny

I'm looking for info on the 302 swapIs notching of the firewall needed or anything like that. I plan on buying the kit from ultimate customs. Has anyone completed this swap here?

I dont know ford/chev that well but it seemsthat alot of peeps here go for auto swap why? I'v driven stick all my life and love the gears.My B2000 is a 5 spd and I'd like to keep it that way. Thanks