Hi Brett,
Understood. Lately, I've been wondering if a cooler could improve my 016 as well - have been trying to monitor the operating oil temps. I haven't rigged up a sensor into an used port (that's the next step) but have just monitored the surface temp (with a non-contact electronic sensor) at several locations and logged it. Nowhere could I get more than 120 degrees on the exterior surface (150 internally??), even with "spirited" driving. I'm sure my measurement technique here is severly inaccurate however.
Incidentally, if you want that "period correct" look, the oil cooler out of a Lycoming (see ebay aviation parts) is the original part and can sometimes be had for a reasonable price but make sure it is properly flushed if buying used.