any tips on pulling under dash wiring harness?

it's melted thru the connector by the kick panel, the other wires are ok, it runs up under the dash somewhere? and some other wires are cut under the dash as well, drivers side by the fuse block, 1 brown wire and 1 yellow wire, taped together, by the ashtray steering column side, 1 red wire, ashtray glovebox side, 1 orange wire aand 1 pink wire with a male connector with a cut pink wire, and the no#1 fuse has no power going to it, there is a scamp sitting in the junkyard that I'm going to pull the wiring from, I'd like to get by with just the rear lighting harness, but with all the other cut wires, I think I better change it all, thanks for the reply.

Mark