Thanks for your interest in LXD!
I've got a few candidates in mind that may work for this kind of time commitment.
I'm going to do a bit of cleanup on the relevant Github issues to make the work involved clearer and will post links here.
You mention that you're looking for about a month of involvement but when would that be?
Most of the work I can think of would have to be done by end of year or end of January at the latest, is that something that'd work for you or should I be looking at feature work that we're not committed to shipping in LXD 3.0?