You need to make some decisions about what you're doing with the truck. You just want replacement, or are you doing custom stuff with lots of accessories. I used the classic update, in that you ditch the ammeter and external voltage regulator. I'm pretty sure it's setup for points or HEI too. Read at their site, AAW has all the instructions posted on their site in PDFs. I'm not an evangelist or anything, but the kit was complete and was actually a fun upgrade... beer drinking busy work. I liked the kit a lot.
Get: good wire strippers, crimper, assorted heat shrink sizes, loom tape, assorted zip ties, and firewall grommets, and I did a fair amount of soldering too.
Have fun!
j