Thank you for the reply John.

I must admit I'm a bit nervous about pulling the shutter assembly apart. When I pull the top plate off, will it "explode" and send tiny parts everywhere or do things remain stationary it it's not cocked?

Another option I have is removing a complete working shutter assembly from a 50mm lens I have who's glass is in terrible shape. It appears to be little droplets of something, maybe oil vapor from a CLA gone bad?

I guess I would like to try and clean the glass before stripping it for the shutter assembly.

How do I get this lens apart? The screws under aperture ring don't come completely out and I feel like I'm using too much force when turning the front element/ floating element ring. it turns a little bit in either direction but nothing seems to be "un threading"