In case you do not go to Triplesonline, I posted this there about the coolers:
Top - Saab 900 9 row, all black. Shorter end caps, same post spacing. Vertical threaded posts, the left slightly inclined inboard.
Second - T150 possibly factory (CR&P) painted as only the top, posts and ends are done. No overspray on the bottom plate or fins.
Third - T150 cooler, black on top scraps off with finger nail. Glue on ends from reflector rubbers.
Fourth - Cooler from my R3OIF, adapters changed for AN fittings.
It appears there may have been a clear coat that has turned slightly golden over the silver. Rubbing with a brass brush reveals the aluminum underneath.
Picture on a paper white background.
By the way, H*rley used disappearing black paint on the V-rod to hide the radiator in front so not to offend the purists.