Well, speaking of OCD, I might just suffer from a small dose of that as well.....
I did a full restoration under the hood a few years back, but stopped short of removing the sheetmetal. The inner fenders, brackets, air cleaner, et cetera were powder coated, while the cowl, firewall, and core support were painted. The original engine was replaced with a stroked XX block with all correct W72 pieces including heads, carb, intake, and exhaust manifolds to retain stock appearance. Since then I keep it clean by wiping it down with Simple Green and using Aerospace 303 on the rubber and plastic bits.
Here's a link to the thread on the car.
http://forums.maxperformanceinc.com/...d.php?t=755425