Ask and you shall receive!
Click here for my 50/1.4 disassembly pix.
(You shouldn't need to split the front and rear halves of the optical section to clean up your aperture ring, so you can disregard the first pictures. Just remove the optical section from the mount, as shown in the later photos, and it should be accessible.)
A sticky aperture ring actually is a fairly common problem on various Canon lenses of this era. Canon used a lubricant on the aperture ring that didn't age well: over time it turns yellow and gets sticky, more like glue than lubricant! Clean it off with solvent, apply a SMALL amount of a good-quality modern lubricant (I like to use lithium brake-caliper grease from an auto parts store, because it's formulated to stay where you put it) and your aperture ring should feel like new.