Made it to the end, at last, after last week's disappointment that's proved too much for me. This one had a clever enough theme, although I wonder if it might have been better to aim for more uniqueness of replacements -- examples being by having down clues giving normal answers with coin replacements, and across clues working as they do here. No matter, thanks Dilwitch for a clever construction. I enjoyed his first listener, Downsizing, which was also one of the first I attempted.