M!ke, what a relief, what great news to have your car painted...just looks great...can't wait for you to be driving again.
If you don't mind being obsessive (!), the really correct Trico Dual Washer with Knurled Jet for the Mangusta is a round base, not the version with the hex base. I have a bag of these somewhere (I think couldn't resist a grab bag of them, after I must of given you the jets themselves). But market price is generally about us$50 or more when they show up--so if you are having other plating done, you may get a freebie if you want to replate your old one.
I have seen Mangustas that have the round base, but don't have the knurled washer jets... but way too boring for me
And the mystery part is a mystery to me, I don't recognize it at all...Lee