Kevin, do you have a voltmeter? If not, you need to get one. Set it to 20 volts and touch one end to the green wire coming into the brake switch (key on) and touch the other end to ground (engine) you should have 12 volts or so.
Another quick test is to touch the green wire to the green/purple wire bypassing the switch - the if there is power, the lights should come on.
If there is no power at the green wire, your problem is between it and the fusebox, (BTW test the fuse for continuity with your continuity tester - just because you can't see the break doesn't mean it is good - don't ask me how I know.
If there is power, and we know the switch is good, find the green/purple wire in the trunk and check it for power (tester to wire and to ground - a bolt will do)
I have a little piece of wire that allows me to bypass the switch completely - a jumper wire will work too, then you don't have to keep pushing the pedal.
If you have power at the green/purple wire, check you light bulbs. You can also check for power through the light socket by touching the bottom of the socket and the sides.
If the bulbs are good and you have power then it is the ground. I'm not sure what Bugeyes are grounded to, but mine ('76) is grounded to the bolts on the light bracket itself.
If the short is between the switch and the fusebox, it really can only be the fuse or the connection to the fusebox itself - clean and tighten the plug.
A third test is to take a jumper wire and run it directly from the battery to the green/purple and see what happens.
you're close, very close!