So the budget is limited, the question is what would I do, if I wanted someone to do it for me I would check the local craigslist or paper thrifty nickel or the like, there are usually guys who have worked in body shops in the past and now do work on the side and will work for reasonable and work with you on what you want done, talk to a couple of them, see what they can do for you within your budget.
If going DIY, which it sounds like you are interested in doing, and you want to just paint the hood, take a panel to the local auto paint store and have them match the paint as best they can, and have it mixed up (and put in a spray can if you don't have access to a gun), sand and prime and paint and drive.
If you decide to paint more than the hood sounds like you might as well paint the whole thing, as mentioned you could take it to the local Maaco or equivalent, or if doing it yourself you might try autocolorlibrary. They have Triumph chips from the 60s, and you can buy half a gallon of paint, the catalysts, etc. for about half or less of what the local body shop charges for PPG and such.
From where you are at I would try to get a decent paint match for the hood, paint, drive and enjoy. The view over the hood of a 4 is one of the nicer ones in the world of cars, make it nice and shiny for that reason, although the flat black would be kind of cool.