Just bought a 64c10

[64PHILGINN]

Just bought this 64 long bed the bed and frame have been shortend I thought it looked pretty cool !! This is gonna be my first project and mostly everyone here has so much info it's unrealistic! It doesn't have engine or tranny and the rear end is blown out but it was cheap so I thought I could make it custom! With the bed and frame being cut have any effect on driving ? And I'm looking at a 12 bolt rear end that was for leaf can I purchase some new perches and weld it to the rear end and fit it on my rear springs? Thanks for any info y'all have!!