I would say, after sitting for 4 years, DO NOT try and start it! You've got a good amount of fuel tank, line, filter etc etc cleaning/replacing ahead of you.
#3 should be done #1 and the results will predicate the direction of your project. If the car needs serious head/engine work, a "real tight budget" will most likely not be able to get you where you desire.
Injectors are easy to r/r, and buying recomditioned/good used ones will also help that budget
Change ALL fluids. FRAM Oil Filters, are not allowed!
There are only like 1001 other things I have not mentioned that you might also run into or will pop-up once running...ask me how I know :/
Search function and tech articles are great places to start here....LOTS of other knowledge in the brain trust as well.
Until then, get your HS cheerleaders organized to do a car wash....helps with the budget
