They are ALL over feeBay pretty cheap from an assortment of sellers, around $30.
(nixed the non-working link - sorry - for some reason, I can never get feeBay searches to work in a link)
Just search for "
CB5* master* " (no quotes - the * are 'wild cards') and make sure to check the "include eBay stores" box - NOT checked by default *sigh*.
(another thing I hate about eBay - a few years ago they were all like "eBay stores are great! put all your inventory there!" and now they do everything they can to steer people back to auctions, since they make more money on them including NOT searching stores too by default, showing auctions thumbnails but not showing stores thumbnails in searches, etc.. . . .GAWD they need some competition between this kind of nonsense and their ever increasing fees. . . .sorry to rant but obviously I have quite the love/hate thing with them. . . )