Chainsaw Repair

I think I still have a 6 footer in one of my sheds that is missing one handle I've yet to repair .It's a skinny one .My dad had a wider one with more arc but I haven't seen it in 40-50 years ..My sister owns the home place so  it might still be hanging in the barn .No reason to throw it away .
I remember trying to use that thing as kid.It isn't all that easy .