Response from OpenBazaar so far.

cpacia [12:14 PM]
@DiggnDeeper looks correct to me. If people are taking it on it would probably be good to coordinate. At this point we don't yet have a plugin interface so any new coins need to be specifically hardcoded into openbazaar-go and that would probably require deeper discussion with the team.If someone put in the work and was committed to maintaining it and staying up to date with changes to openbazaar as they are made we'd probably include it. But if it's just a dump of code on us that we have to maintain I think we'd have more reservations.
mg [2:14 PM]
Yes, I read through the post last night when you shared (and we'd be willing to help guide as needed). I think you might be able to get away with not implementing the full interface right off the bat...maybe focusing on the high-risk aspects to determine if the wallet impl is feasible? Let us know if you need anything from us and we'll see what we can do to help.