Bed mounting Hole locations?

[chev3600]

I'm putting a 54 bed on a 49 frame and dont have a lot of decent parts to go by. After much online searching, I'd guess someone probably has the measurements I need sitting right in their garage. I'm trying to find out the locations of the four (or 6?) main mounting bolts for the bed. I'm not sure what the size of the hole is either. Maybe someone has a wood kit around and could grab a pic? Not sure if I'll need the 49 or 54 locations.
I've searched a lot of forums and came up with tons of other info info. Mar-k and gmcpauls are great.
Thanks!