It’s going to be a bitter, nasty, painful election. Period. VPs could decide this election. Trump and Clinton need to pick someone safe as their VP. I would advise Trump to pick Tim Pawlenty or John Thune as VP. The attention will be on Donald anyway, so pick a vice president who will not rock the boat or distract. Put Pawlenty or Thune in IA, WI, OH, and let Trump focus on Florida. Period.
Your VP selections are logical. Please do not pick Cruz for VP. It will overall subtract more voters than add voters.