I would advise to contact Audeze directly about getting a refund on the Reveal +. First off, you likely paid $2,400 for the headphones so they should have a great understanding for your hardship. Secondly, Audeze has great customer service that is prompt and very customer friendly - I would bet that they would be likely grant you some sort of refund.
I might try that, although if I end up getting some amp/dac and going with cables, I will want the reveal+ purchase. decisions decisions.