I've scrounged and dealt in engines and blocks for 20 years, never had my hands on a 409. Seen one, but couldn't touch it. The block I have for sale is the very first '512 casting I've ever had my hands on, it's a rare find for sure, but not as rare as a 409!
Whaddaya farm? I grew up raising cotton, grain sorghum, hogs and a whole lot of hell. Glad I got over that last part!