Bummer about the saw/coil, and the chicom parts.
Right in your neck of the woods and parts availability is a bit better.
https://www.arboristsite.com/threads/super-clean-026.357077/That would give you time to find some oem parts to rejuvenate the ole girl. I'd just put an ad on here looking for a coil, someone has one.
Edit; here's one on flee bay, once you click on it down below the initial ad you will see other options and you can bounce around to find something that may be cheaper, I didn't look to far.
https://www.ebay.com/itm/3535507349...9C50swGh_hEVBDcfdqSqm_T0Rs0dWznQaAnzxEALw_wcB
This is also a great saw, if you want to jump into a more modern saw that has some nice features and sips fuel.
One benefit of the 026 is that pretty much any shop can work on it of you don't have a great dealer if you ever had a problem needing diagnosis of the mtronic setup.