Thanks for the two replies.
Air and Road, no I don't have access to nitrogen or CO2 Argon. I'm working with a vacuum pump and gauges, and UV light and sniffer. Not sure where to get nitrogen.
TX76513, Yes, I did put UV die in with 2 cans refrigerant. The condensation drains were dripping pretty good, and I was unable to find any trace of the UV. I'm stumped on this one. If this leak was in the evaporator, would the sniffer pick up some in the AC vents? I didn't get any trace there. The biggest hit I got was near the clutch of the compressor, but it wasn't much. It did get more noticeable when the evaporator core froze over.