5 spd manual swap into silverado

there is no info on this swap so for those who know there stuff, i found a wrecked joe gibbs silverado, its got 25k miles on it, im trying to go from my 4l60e to the 5 speed manual in the joe gibbs, before i invest, what would i need besides the basics, crossmember, driveshaft, pedal assembly, is there a computer on that tranny, what are some problems i may run into,
the guy is given me the stuff for $1000, what do u guys think