That is the plan, do a test patch with a scraper and a sander.

Definitely hasn’t been painted, I was able to chip a piece off and you can tell the surface is the exact same as the interior, I’m REALLY hoping it sloughs off with spray and scrape, I have a lot of health complications that get exacerbated by using a sander so I’d need to hire someone if that happens

And yeah I don’t need a perfect flat, if I can get it something like this, I’ll be completely happy with it, cuz that will look nice with a coat of paint over