I had look at some import tools. Some import only one issue, some import many at once. But no one import pull-requests as pull-requests. The best so far is https://github.com/IQAndreas/github-issues-import . But it imports PRs as issues. May be possible to convert such issues to PRs later. As a sample, I imported an Issue (https://github.com/alanjds/grumpy/issues/1) and a PR (https://github.com/alanjds/grumpy/issues/2) to my own fork. Are the results acceptable? Should I proceed with a full import?