Actually I just changed my mind. I do not intend to punch holes just into the copernican system. I want to put the whole system under pressure so that it would either break or persist. If there are any weak points in our current understanding of the cosmos then I would love to keep punching those weak points until they are no longer weak points or the whole thing falls apart. Copernican system has its flaws.
IMO The weak points to attack are this, Gravity and Dark Matter
(I cant go with you that we are living inside a hollow earth though. eg Why do i see the horizon when i look into the distance?, if it was concave I should see more earth fading up into the sky shouldnt I? )