This thread needs some updates. I just got some more Zuikos, a minty late model 35-70 f3.6, a badly threated 24 f2, and a 65-200 f4 that has a stuck filter and some dents on the hood but flawless glass.
The 24 f2 looked like ex owner's wife would have preferred a f3.5 as it was dropped on it's bayonet and aperture auto lever was stuck. Thankfully the glass was not hit. I took a spare bayonet mount out of a cheap 75-150, but lost the DOF scale. If someone has a 50f1.4 parted out, please PM me as it has the same DOF scale markings.
There's also haze behind the front element, if there's a cutout or repair instructions somewhere, they might ease the cleanup job. Meanwhile I need to take some test shots with it.