output shaft viable repair ???

[Disorderlypunk]

could do with an engineer to double check this out and let everyone know before this is tried was just an idea and i know there are some amazing lathe machinists out there
i keep reading about output shafts being stripped and i cringe when i hear the sprockets have been welded on (yeah it works but)
i will be stripping my engine down before long and i know my output shaft has seen better days so was wondering if it was viable to sleeve the threaded shaft after turning it down and having that re threaded
obviously there is litle rotational stress in that area so i thought by making the sleeve a little bit smaller and using heat and compresssion to get as much friction between the two and even welding through holes to add more joint strength just incase
then turning it down and re threading again
-what do you guys think cause there are only so many of these used output shafts around.
[smg id=3010 type=preview align=center caption="shaft repair?"]