Great stuff, gar. Keep it coming! WBAP was the first mainland station I heard that Saturday night when I was on the north shore of Hawaii in my mom's '62 Impala with a stock Delco radio. WBBM. of course, is a nice catch in its own right. But it's a little more impressive, IMHO, given that for whatever reason, WBBM doesn't seem to be getting out quite as well as it used to. I predict you'll snag WLS sooner rather than later. The other two Chicago blowtorches might be a little more difficult. There's a 720 on Kauai, but you could probably null that one, but you'd still have KDWN aimed right at you. As for WSCR....isn't there a local on 670 in Hilo?
At any rate, you're sure to have loads of fun, seeing what you can come up with. Happy hunting!