To run without a battery you need to convert to a PMA. When you swap to a PMA you remove most of the stock electronic ignition parts. The coil can work with a Pamco. With all that work, upgrading the coil is a good idea.
I know the basic Pamco using the stock advancer, or one from Mike's, will run fine with a PMA and cap.
I don't see why the E-advancer won't work, PMA and cap.
Pete, will the E-advancer work with a PMA and cap?
Leo