Rani, I know you don' wanna hear this, but when I was in the Navy (six pack Road Runner days) I carried all my tools all the time--had no other place for 'em most of the time!!! I had about 150 lbs of tools back there in two big "clamshell" tool boxes. This one isn't mine, but it's just like the ones I had.
(One time I got into a little bit'o street race, and it was pretty close. The other guy thought I should've done better. I opened the trunk and said, "you wanna try it again after I empty the trunk?"
Concentrate on what you need for "keep it running." You can drive far enough to buy a headlight, and you can drive quite a ways without a regulator or alternator, so long as the bearings are OK. "Set of screwdrivers" could be a "4 in 1" which gives you 2 sizes of both straight slot and phillips.
Be sure to think about special wrenches for that one hard to reach bolt. Does you no good to have everything to change a part, but not that one special short extension to get out a broken plug with those headers, etc.
