The dreaded Click!
And the cause of the dreaded CLICK! was...
wait for it...
the battery to body ground!!! After I cleaned off more paint on the rad support and filed the lugs clean, it cranked right over! The best news? The engine fired for the first time since I installed it tonight!!! I won't be sleeping, that's for sure.
Thanks for all of the help! This is the best place on the web. :)