Push Button Shift Cable Conversion?
Here are your options there are not many.
1) you could put a floor shifter in, but it would only be a shift selector. Reverse, Drive, one, two. You would still need to have a parking lever, somewhere but this can be done.
2) this is easier, put a 66 and later transmission and use and shifter you want.
3) if you went with a 66 and later trans, imperial services makes an adapter that you could use a period correct console shifter with a single shift cable.
So you can go backwards with a late trans and stock shifter, but you can't go early trans with a modern shifter (easily)
Hope this helps