Go from Good Springs to Sloan, if you walk on the hill alongside the road, you'll avoid both mutated animals and Powder Gangers. You 'll a robed corpse underneath a bridge. You can loot it for the robe and a laser pistol and energy cells. THere should be no ambush.

When you hit Sloan. Wait until Dark. DEath Claws are less active at night. Now walk upon the mountain side. Keep going, donot come down from it until you are within sight of a huge building with robots patrolling it. THat's Repconn. Come down from the mountain and go to Repconn and save when 'you have discovered Repconn' comes on your screen.

Keep travelling. In the distance you will see a fort. The fort is Camp McCarran. Walk behind it, you're less liable to meet mutated animals/ fiends. Keep wealking, you'll by pass an NCR roadblock. If you aren't mean to the NCR/other people, thwey'll just let you through qwithout anmything bad at all. Keep going until you come
to series of bridges across a dry creek. Near one of them are the remnants of a battle between a caravan and Van Graff personnel.Loot both the ash piles
and the bodies(Including dead pack animals).

Repair the combat armor and plasma rifles to one of each. SAve and fast travel Goodsprings and save again.