Yeah, that Warning Star should be a perfect candidite for a repaint. The contents of the radomes were different, but I'd be willing to bet that the structures of the dorsal radomes on the EC-121 and WC-121 were identical. The belly radomes on NOAA's WP-3s are the same structurs as on the Navy's EP-3s.
WP-3

EP-3

I'll be curious to see your repaint.
It is a shame that hurricanes aren't modeled. Since I first saw this thread, I've had lots of ideas for hurricane related missions in FS- storm recon, prestorm aircraft or personel evacuation (like gulf oil rigs), SAR, poststorm assesment, etc. You wouldn't think big storms and aviation would be a good match, but it does offer possibilities!