As I recall all the various Welt 944 springs have been discontinued for a few years now.
But when they were available new they sold for about $120 a set. There are a lot out there.
Not trying to beat you down, just saying that at $1200 you'll be sitting on these springs for a long time.
I'll yank the 200# weltmeisters off my car right now if anyone's buying for $800