Yes, have them done at a machine shop, usually the automotive type. They may either ream them or hone them, but the important part is both bushings/bores share the same centerline, so using a long hone or a piloted reamer.
Otherwise adjustable or fixed reamers are available if you really want to do it yourself.
look at "Long Pilot Adjustable Blade Reamers" or "Spiral King Bolt Reamers"
This link
https://www.chadwickreamers.com/products.php
