IF you go with offset dowels, when you get them, you'll be able to see the direction of the offset, just holding them in your hand. Since you've done the hard work already of determining the offset & its direction, to then install the pins yourself will be a snap. Just align them to offset in the direction you need to move for alignment. Of course, both pins need to be clocked going the same way. Repl. your bellhs'g. & recheck for safety. You'll be happy, proud, & money ahead. Remember, they can always be pounded out & re-installed if necessary.
Doug