Yeah, good luck with your search.
I bought the only one I’ve ever run across many years ago. A mid 60’s era L579 in .243, for $525.
It never made sense to me in that cartridge/platform, so I sent it off to be rebored to .358win.
It’s been used on several elk, but I’ve never used it on deer.... no reason. Just haven’t.
Nice rifle and it usually gathers several admirers at the range.....