Tires on wheels is a good start, and $50 is a good price.
The journal is a GREAT idea as is the expense log. You'll find that after a while some things you'll forget that you did and do over or not finish.
One other thing you should have is a rough PLAN of what you'll do first and second etc.
Resist the urge to completely disassemble the car...it's often the kiss of death to a project because it takes too long to get it back together and you'll lose interest. You will also end up misplacing alot of parts that can best be left attached until you get around to that particular area.
I would say number one is to do a thorough cleaning inside and out (wear a mask or respirator), then get it running, then get the brakes done, then the steering and suspension, then the wiring.
With all that done, you can theoretically drive it while working on the rest or at least it will move under it's own power.
You'll have the coolest car in high school if you get the old Dodge back on the road!!