Have a look through this lot, the G'craft are billet hence the price:

http://search1.auctions.yahoo.co.jp/jp/search?p=%a5%e2%a5%f3%a5%ad%a1%bc+R&auccat=2084016403&f=0x2&alocale=0jp&mode=1

My local Nankai store has a huge section for monkey/ape/dio etc...

Heading there today so will also ask about hubs too.
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Resistance is futile!