trimmer brushcutter

Hello folks, I have a Stihl FS45 trimmer with a stripped out( or otherwise immobile) shaft mount INSIDE the aluminum driveshaft tube. Wondering where lowest price OEM replacement parts are best acquired. Need the curved tube / driveshaft housing from the engine housing / trigger to the...

If this is not the proper forum please forgive me and maybe someone can move it to the proper location. Need a brush cutter for briars and brambles and tall grass, and minimal trees - maybe occasionally 1 inch. Unread somewhere 240 is 2 stroke and the R model is the valved engine. I have an old...