I recall as a child making a perfectly passable pinhole camera to "see" the eclipse. I have to imagine that with a perfect pinhole (from an optical supplier not the hole I made with the sharp end of a compass) one should be able to image this properly. The good news is there's plenty of time to perfect your rig as you can just image the sun until the appropriate time (or the moon at a massive ISO as the subtend about the same angle in the sky).

If you happen to have a really nice tracker for your telescope you can use a really small pinhole. Yes, you'll be diffraction limited but if it's a nearly perfect pinhole you should be able to process that effect out.