How to go about replacing roof on '68 dart hard top

Hello all,
I am just wondering how I should go about replacing my roof on my dart, I am considering re-skinning it since I have a good roof from a '67 a pillars and c-pillars. Are there any articles on how to do this? I am also considering just cutting the a and c pillars and welding them onto the car but I am very nervous about doing this and I would like to see some ideas.

Thanks!