After everyone's feedback, and considering the amount of work I'd need to do just to get her legal on the road, I ended up deciding not to pull the trigger. I really do want another full-size, but I can't justify this one. Too many missing pieces and it's been sitting out unprotected for too long.
Thanks - and if anyone's got a Cat or Bonnie they want to sell, sedan / hardtop / whatever, shoot me a message
-Jim