Talley Ho, you are a lifesaver. Thank you so much for taking the time to make such a detailed post! You even answered questions I had but didn't ask for the sake of not driving everyone crazy. One of which was about insurance. I also have Qualitas, and was going to see if I would be covered in the US, but figured it was a huge longshot. I will double check to make sure my policy is the same as yours before we go.
We bought a new car here in January and still don't have the plates, I can't believe how long it is taking. Hopefully they will arrive before mid July when we plan to take this trip. If not, we do have the paperwork showing the registration (or whatever they call it here) has been paid. Sure would be nice to have the plates thou and not have to worry.
Regarding the tolls, I've been thru one in Cabo and it was manned (unlike most in the US) so I assume paper pesos are okay, or do I need to stock up on coin?
Lastly, about the stamping in and out that you mention. Are you referring to passports or the FMM? It sounds like passports but I didn't realize there was an in or out.