Cash Puzzle Gift

To test the waters, the original was deliberately simplified. For all those who said my previous puzzles were just too easy (literally nobody) I give you this, my most masochistic puzzle to date. Knowing the design inside and out, I found the previous challenge lacking. Let's step it up a notch (there's still more to go).

I don't know if this has got anything on a Revomaze in terms of difficulty, but I feel we're probably beyond fair for a blind maze at this point. Need some peepholes and maybe some cryptic runes on the internal slider...