RE: Can't drill parallel.
I second the hand drill...i have the hobbico finger drill set that i got free from Tower. That way you can drill slowly and in a more controlled manner, as well as be able to check your progress every few turns of the drill...
I know that you said you had minimal tools, but on my most recent build i used a drill press ($100 from Sears) and i'm never lookin' back!!! The holes were perfect...and that was on a Hangar 9 control horn where you have to drill THREE parallel holes