If I were you, the very, very first thing I'd do is make a list and be realistic about your desire and ability to undertake a project of this size. You need to determine up front if you have the money for this, the place to do it in and the time to devote to a complete rebuild. Get several catalogs and start pricing out the things you think you need. Parts like maybe a disc brake conversion, suspension rebuild, interior refurbish and all the trim could easily top $3,000. Start adding up small parts and see how fast another $2,000 gets eaten up. Add about $5,000-$10,000 for nice paint and you can see that a nice resto job is not cheap. When I started my car I had about $5,000 saved and thought I could do a Shelby clone for that, plus whatever I could add each payday. I wasn't even close in my estimate and consequently my project has taken about four times as long as I'd thought and cost about $7,000+ more than my original $5,000. I wish I'd driven the car for another couple years and saved my money so the project would've went much faster.
A good workspace is another item that you can't do without. Rebuilding your car in an apartment carport is a pain and borrowing garage space from a relative or friend is another option if you don't have a garage, but how long will your Aunt be willing to let you and your buddies work until midnite on your car? I see so many cars sold in boxes and half disassembled these days that it's not even funny. The owners all had great intentions and lots of enthusiasm at the start, but ten months into the restoration, it turned out to be a lot more work than they thought, they get tired of being broke for a car they can't even drive and they end up selling the car for pennies on the dollar. My project has taken over 4 years and there were lots of times I wanted to just forget it, but that's how it goes. Be prepared for that feeling and be determined to work through it.
Another factor is ability. Can you take stuff apart without losing half the parts? I'm not trying to be mean, but lots of guys can't. My wife now owns a '69 427 Corvette that the original owner attempted to redo the interior himself. He took every single part, every fastener and every panel out of the interior, then went through a divorce, had to move and promptly lost every single fastener to the interior. Another freind has a '67 fastback that had a broken driver's window regulator. He tried to fix it himself, broke most of the door stuff including the window getting it out, then gave up. The car has been sitting in his garage since '87 with the window down. He says he's gonna fix it soon.
My point is that you need to gather your wits and get a plan together before you ever order the first part. Make a plan and be ready for hard times, be ready for setbacks, be ready for whatever can go wrong and if after all that you still think you can do it, then start breaking the restoration into sub-sections. I did the disassembly first, then body and paint, followed by the engine and trans, then the interior. You may choose to do yours in a different order, but try to keep from tearing the car down to the shell all at once to avoid losing half the car. Good luck!