Have you considered ordering a touch up quantity of 086 Avus Glasurit from Holt BMW in Ohio and then having it matched by a local ppg shop? I ordered some of the azurblau for the 501 code on my 83 and it is a perfect match. The Honda Blue is close, that's for sure, but the Glasurit is exact for touch ups.
On the other hand, a properly done paint job, and not skimping on the prep, is going to last a long long time, so what is $125 (especially these days) over 5 or 10 years?
Great, I've just provided two completely opposite suggestions...