slick workaround for replacing captured nuts in frame

has anybody tried something like this?

basically cut slits for the 6 corner points (and knock out the old in the process) then hammer a new nut in and weld... im liking it. hell of a lot better than tearing out interior and drilling down from top which was the only other way i coudl think. though youll still have the other one rattling around in there hahaha. anybody got any better methods?












heres the actual thread i found on it:
Captured Nut Repair- Frame - JeepForum.com