I'm looking for a crossbow with keen and vorpal that also has a red augment slot. I have a ton without slot. I'd rather it was a heavy repeater but any kind will do.

The lower level the better, ideally level 1 (lol yeah I know) but not above 5-6 unless you have one with a third effect as well (obviously 10+).

Unless you are that one guy that had the riptide of lacerating, I'm interested in that too. For collection purposes, it's obviously not that good nowadays.