Thanks for your responses, bkepler and toxophilite. I've gone ahead to try steaming it off. I've gotten the fret pulled and the holes drilled (see photos). Next step is to devise a steamer. . .
https://photos.app.goo.gl/77GC8AvPaXNeXSmQ9
https://photos.app.goo.gl/JMptTjgLW3FLwqjA6
https://photos.app.goo.gl/R2iaYTziHf5QPKbE8