Yeah but you have a good solid running driving rig. Thats 1/2 the battle in these times. You can make it pure by degrees and enjoy it while you are up to it. Also an overdrive and power steering are easy to install and easy to find then it is a joy to drive..
Actually its a piece of cake done a couple over the years. Easier than going the other way although thats not bad either. You have to hook up your own neutral safety switch as stick are not wired for it. OR just don't be dumb and start it in drive (oops pardon me HIGH). Column is an easy change flywheel and pilot bearing again easy. Cross member the same. the pain you have to change the rear center section #1 stick ratio 3.9 or 4.11 Ultramatic 3.54 and drive shafts different. Easy way 51 to 54 200 or Clipper parts car and there are many cheap ones. PM me with any questions.