hi sean
im in the sme situation as you -need some info on props!
but heres a link for an X431 in plastic
http://cgi.ebay.co.uk/100-NEW-X431-O...em150062338772
its an ebay shop and theyre in hongkong but even then shipping is still small!
i've bought all my flex drive and shaft and coupler from there. cheap enough!
hope that helps
Graham