Did you try copy/paste the Word content (maybe chapter wise) into Oxygen? This way, tables, lists, etc. convert rather nicely to DITA elements. If it's just one doc and not x-numbers, I would do it manually. The effort with 85 pages cannot be that huge.
Also, there's a Word to Dita conversion function in Oxygen itself you might wanna try:
Von: email@example.com <firstname.lastname@example.org> Im Auftrag von Nancy Roberts
Thanks! All we really need is DITA content that is clean enough for a reasonable import into Ixiasoft. None of us know XSLT, but we don't mind doing a little cleanup once we're in Ixia. It's an 85-pager that's almost all tables. If Word2Dita can get us cleanish tables in DITA, we're good. I'll definitely take you up on your kind offer if we run into any bumps.