You've got your work cut out for you.
Seriously, buy a manual one, but not for the reasons you may expect.
If you buy a full car, you will get everything and much cheaper. Strip it and flip the rest for scrap. Sell parts to make some coin as well.
You will also need shift cables, shifter assembly, shifter cover, instrument cluster(swap your odometer out), gearbox mount(I think it's different), flywheel, clutch master and slave cylinder and the ECU/engine wiring harness. Plus a bunch of small bits and pieces.
You will probably need to drill a hole in the firewall for the clutch master as well.
It's a pretty big job.