Okay. So I shoulda done a little more research on here and had the seals I needed on hand. See this post for an explanation...
Tangofox's seal dilemma.
When I opened the R4 compressor, I saw a green seal, two red and two pilot bushings.
Uh oh.
I was pretty sure I was in for it, so I pumped a little gas in the system before I cranked the engine. Can I tell you that my freon rushed out just as fast as I pumped it in?
Drat. Well, at least now I have the proper NAPA part#s. Thanks Tangofox.
I gotta super long drive Sunday and Monday so I rented a car. As soon as I get back, I'll get the proper seals and be cool again!