You are talking to the trees out back again,
Anything is possible if you know how, to repair an out of true Bore like this, obvious you do not
I think we could almost feel sorry for you, that you have lead such a sheltered life, manufactures that use Timing Pulleys, and everyone that buy timing pulley stock, machine the bores every day, you can buy blanks and machine the bores to fit what ever you want
some photos of Timing Pulley blanks below may help you get the feeling you don't know what you are talking about, the photos below are just a few of the possibilities
You can buy Timing Pulley stock from all timing pulley manufactures, any pitch and most tooth profiles, and machine your own to what ever you want them to fit,
the hybrid special photo I made is an H series