Thanks to atpchas I have a parts list. Going with Meteor for either the piston kit or P/C kit. But the other stuff, mainly the carb and chain oiler hoses, filters, etc... I'm thinking of going with one of Amazon's mid range $$ rubber parts kits by Coolwind. I'd like to think paying a bit more than the cheapest available means a better product but it is likely that 90% of what's on Amazon is the exact same stuff repackaged and rebadged.
The crank seals are coming from my Stihl dealer and so is the replacement for the clutch carrier I broke and a shoe retainer. The flywheel has proven stubborn, the dealer offered to remove it n/c.