People propose all kinds of ridiculous things when they don't understand the magnitude of the task. In this case, it means completely disassembling, rebuilding, and refinishing the guitar. It's certainly possible, although I can't say I've ever heard of such a thing being done. For a competent builder, I suspect the price would be $5K and up if you could even find someone who would take it on.

FWIW, I wouldn't do it.

A slightly more reasonable approach might be to remove the back and turn it into a wedge. It might also be possible to retrofit a bevel on the top edge. Not sure if either option would appeal to the OP, but it might make the guitar more comfortable without the over-the-top rebuild.