can you get an exoskeloton suit before you enter the nuclear power plant
If your playing a mod like ABC and Faiakes i found one in the truck right outside the doors of the plant on the right, its on the bed of the truck if your brave enough to get it with the blowouts and all as for vinnila humm dont know for sure. Good luck
You can get one from Fang's stash in Pripyat. Other than that you have to buy them. If you join Freedom (it's hard to do but can be done in vanilla Stalker), the Freedom trader lowers the price of exos. Other than that I guess mods.
such a shame you cant kill off the stalkers and loot their bodies for pieces of armor to upgrade your own.
XD but to be more productive; fangs stash will only be accessible if you check the pda's of dead stalkers for the stash.
It's easy to find, the dead Stalker with the PDA is always in the same place. He is in the sewers or tunnels below X16. After you kill the Controller and loot Ghost's body go down the exit and into the tunnels, the first body you see is the guy with the PDA, but it is random. So quick save then search his body till it beeps like you found a stash, and that will be Fang's. Then just go to Pripyat grab the stash (it is below the statue in the square) and continue your game. I did it fairly early and I still have Fang's armor (I use the artifact armor repair in Vanilla 1.0005 Stalker).