I have a scanned PDF file of the entire Complutensian Polyglot here that includes the sixth volume dictionaries and all. It's not a pretty scan of a facsimile version, but looks to be rather a scan of a quite old one. There appears to be an inscription from the 1850s at the lower part of the title page. It's probably in better shape than the Complutensian Polyglot in your library though.
I wanted to inquire and see if anyone here was perhaps interested in having a copy of this work. It is 1572 pages in length and the file size is 491 Mb. I do not have a place handy online to distribute it such as an http or ftp server but perhaps I could facilitate making it available via Bittorrent or another p2p means if there is any interest.