Yep.... the default judgement! That's what I did, though in my case it was because we agreed on everything. Then I filed, with what I "wanted", which basically just said everything was already split. After I filed the petition, and she accepted, XW had 20 days to respond. Then I filed an application for default, which gave her another 10 business days to respond. After that it was just waiting for the 60 days to be up, and as long as the judge thought it was equitable, it was done. Since the petition claimed everything was already split, there wasn't anything to talk about.
You might have more of a challenge, though. I think Dan could well be hiding stuff, and your attorney might need to file something to compel him to come clean, or risk contempt of court. Though it might be possible to just split what you know about, and have words that protect you if something is found later. Don't know about that.