No need to give up-just bide your time. Eventually you can find a lot of bargains, or just get lucky scrounging...and while you're being patient, you can try and save up some extra money for your project.
Heck, i'm too poor to even electrify my bicycle right now, and i've lucked into 3 old bikes I can salvage parts from, a 1972 VW Generator for a motor and some cables. I'm half there for free...
I feel your frustration, mind you. But look at it this way-
AN
TI
CI
PATION
-is half the fun!