wiring help on 6.2 diesel to 350 swap

[matt_field]

hey guys, i need some help from you guys that know your wiring. I have an 87 chevy 1 ton rollback ive been working on. it was a 6.3 diesel truck. I swaped in a 350, w/ hei dist. Anyways, the truck is an absolute wiring mess. someone had cut wires, took off all the loom, its bad. I want to know the absolute minimun wires this thing needs to have lights, blinkers and run. so far i have the wire to the starter (purple i belive) and the main power to the starter, it has alt wiring, and dist wire. What wires do i need to power up the fuse box?

i know the power goes to the starter and the ground to the block. Does the wire off the alt power up the fuse box? it has that fuse block on the firewall but there are wires going everywhere.

as far as gauges go all i need is the speedo and the rest i can put mechanical gauges in under the dash.

so if anyone can help me get this thing running thatd be great thanks!!

Matt