Ls swap kit recommendation?

[ncsurveyor]

Not as much traffic on the ls subforum so I thought I’d try here. Can you guys recommend an ls swap kit? I’m trying to get most of all my parts ordered before taking my truck to my builder to do my swap. I’m putting a 6.2 L94 in my 68. I’m not sure what all individual parts I need and would probably be safer getting an all inclusive kit. I guess I’d prefer long tube headers unless it’s a waste of money over mid length?
Thanks