Now, only GGW-H10N and GMA-4020B are left to find. GGW-H10N seems to be the rarest Blu-Ray drive in the world (after SH-B022A, of course). If anyone will spot this drive on eBay, Yahoo.co.jp, GMarket.co.kr or other place where used drives can be bought, please write me a PM.
Also, if somebody has this drive, please remove the bottom drive cover and make a sharp photo of the optical pickup label (the label can be also located on the flat cable, connecting the pickup with main board) and see which chips does this drive use in addition to R8J32701FPV. Thanks in advance!