SH4 UBM seems hard to get here in the Netherlands lately. I bought mine about a year ago at bol.com, but it's sold out there now.
I'd try sites like ebay. There seems to be a few good offers out there. SH4 UBM for about €12,- from a seller with 99,5% positive feedback sounds good. It only has to come all the way from Thailand so it could take a while I guess...
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