[ADVICE] '68 /6 P/S conversion, unsure where to start

BeeHive said
The only `68 Valiant parts I have extra are door lock cyliders, rollup window cranks, a set of 13`s and 14`s rims,,also hubcaps for `68,

I'm all set in that department friend. Already have some nice AR 14's on it I enjoy. Thank you though!