Rarity (and desirability) of a slant six/ factory 4 speed?

It's worth more than a auto slant six car. Honestly everyone has a v8 four speed not much with a original slant six 4 speed option. I think it's a rare find. I have not seen a 4 speed early abody barracuda for sale in like 10 years. And that one I did see was rusted the hell out! Nice find!