'98 Stratus issues

I'm trying to help out a young lady here with a 2.5L Stratus. No spark. After running the initial poinpoint tests I found the coil driver wire had a break in it after some nitwit decided the lower rad hose clamp needed to be facing up instead of facing off to the side. Anyway, repaired the break in the wire and now showing 1.9ohms. Flow chart is showing that anything below 5ohms is PCM (Above 5ohms is what lead me to the ground out issue.)

Now to the question. After speaking to a parts counter guy at Chrysler I was told the PCM could only be sourced by Mopar ($500+) and needs to be flashed for the car. After speaking to a tech at Chrysler he said it could be sourced from a parts car as long as the parts car had the same powertrain, non security system.

I know the parts guy's job is to sell parts, but I need to know who's right in this case.

I've done a few PCM's when I was at Ford and they were plug and play. Can I source one from a donor car for Chrysler?