Thanks everyone! I got it all apart this morning. I started cleaning around noon. Slow and tedious. Great news!! I took the lens apart and the fungus came right off and had not even etched the glass. I tested shutter speeds by ear which is not accurate of course but they seem pretty good too. I'm already hooked. Of course, it looks like rain right now so I hope some UV light is still getting through. I've got the 120 back and lens cleaned so far. I'm just very meticulous so it will be a while to get it all cleaned.

@Peter Simpson: I uploaded that Polaroid photo because I thought it was really cool too.