Lead presents an inhalation risk and an ingestion risk, but not a contact risk.

So long as you're not breathing it in (wear a properly-fitted N-100 or P-100 respirator), and are not ingesting it ( remove your clothes BEFORE you enter the home, thoroughly wash yourself and your hands off when you're done), you'll be fine.

There is definitely something to be said for releasing it to the environment, though, which should absolutely be avoided.

Personally, I'd rip off the casings and replace them completely, so as to avoid releasing all those flakes to the environment. But if not, then yes, a combination of scraping, and a sticky encapsulating paint is the way to go.