I think it’s easy. What are you trying to save? The epicormic ones growing straight up from the main branches? The 1 year wood from those are good for grafting. All you need to do is get rootstock to graft them on to. Some people have air layered branches, but it can be tricky. You can either grow out your own seedlings from seed (kinda late for that considering the suckers are getting mature) or get some seedling or nemaguard stock from a site. Cummins should have some the 2nd half of winter. I’ll be getting some pear stock from them.