How much would it cost to change a 80's model Camaro from auto to manual?

[Gnarly Charlie]

I found a 80's model Camaro that runs good for $800 the only thing wrong with it is a dent in the door. I like it but I think its kinda pointless to have an automatic Camaro. I would like to drag race ( Legally ) in the future and I cant really do that with an automatic so how much would it cost to change it to manual?

and I assume you can use used parts right?