Long posts

So I have 3 pnut related projects on my GitLab server that have a few years worth of history in their repsective issue trackers. I'm trying to decide if I should A) write a script to migrate over all of the history to the new tracker (that could be a bit messy) or B) migrate to a different gitlab instance just to track current issues until resolved or C) archive the existing and start clean and only add the important open issues as new on the new tracker.