Points and condenser are easy to replace on this engine, don't "go out" very often (except maybe some of the cheap aftermarket stuff, have not tried any of those) and don't cost all that much. I also saw your post about wanting to replace this engine. Yeah I know it is a KT 17 but is there anything really wrong with it "at this time" beyond tuneup, carb clean, or valve adjustment or even head gasket?
If not, run it for what you can while you seek and find your replacement. Engines are funny. When they know that they are destined to be swapped out it seems then that they all of a sudden don't ever wanna die.
My mechanical problems on everything that I own (cars trucks mowers) seems proportional to what spare parts I have on hand. Have spares, those parts do not fail. Sell/trade those spares away, and THEN I need them-after they are gone.