Pressed Pins into Bushings?

Thanks; pin buttons are unfortunately not an option, as the pin bores don't extend out to the cylinder walls.

I would do new bushings if this is feasible and can be expected to hold; sounds like you have made it work, wyrm. Eagle has some 'service parts' bushings listed (PN B930) that are the right sizing to work with .010-.012" honing on rod end, and then about the same amount of honing in the installed bushing.