I'd recommend going to the Euro Neco page and ask them where they are getting theirs....they have alot of deep dish rims over there in our bolt pattern because it's more popular over there. At least you'd be able to get some manufacturers names....it's a start, but I can't help you out much more than that. The deepest dish rims I've seen are MCONN99's.....and they aren't really a "deep dish" imo...but I'll get the info on them for you.
EDIT: his rims are 17" Mille Miglia Sferra's
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