Hrmm, that sounds like a great idea. I am not very happy with barrel trimmers. Depending on the wood they can be almost useless and I even upgraded to the whiteside barrel trimmer. It's really hard for them to bite into curly maple blanks but other blanks they shave the excess down in no time.
Don't you love it when you to that? If you have a disc sander you can square them up on that. Just stop once the brass is shiny.
You can borrow mine if you are itching to get started now. It's probably a little dull but it usable or you can glue your blanks up and we can trim them at my shop. Eitherway.