4 speed conversion. Help or hurt value of car?

I am a stick shift junky. Everything i own is a standard shift. My 67 notch was a slant sux 3 on the tree. I bought it for the body and the pedals. It will be 360, A833 OD 4 speed. Nobody in my household knows how to drive stick shift. I am perfectly ok with that. I dont let anybody drive any of my vehicles, and this just helps with that.

Build it how you want it. Unless its a rare numbers matching muscle car version of what you own, then make it how "you" want it.