Looks like C-H ignitions may sell individual magnets.

I machined everything from scratch. I was going to use the flywheel cut-out method, but I think this setup looks way better than anything I could cut off my flywheel. Besides, I didn't have the right dia. pilot to use with the holesaw.

AV8TOR that is the sock small dia. carb that came on my Ryobi weed trimmer. When it was still a trimmer, it idled well, but was seriously lacking in power (compared to my Dad's Poulan). I'm trying to find a chep 11mm or so carb for it. The one on there is a Zama, and the venturi measures just shy of 8mm.

I am hopeful that you can get the idle back where it needs to be with the reed mod. What if we made reeds out of carbon? Motocrossers use these with good results.