Thanks HV!!!!your advice is an inspiration for me. I suffer from dysbiosis and leaky gut issues.

how many hours do you suggest between taking Betaine HCL and the TMG?

The easiest thing to do would be to take the TMG at least an hour before meals then take the betaine HCl with meals.

Do you think is best to re-store stomach acidity before beginning probiotic supplement? Or can I do both at the same time?

You can do both at the same time although you would take the probiotics when your stomach acid is at its lowest.  I prefer taking things like kefir first thing in the morning upon waking and before bed since these will be the times when stomach acid will be at its lowest.  Follow with some water to help rinse the acids off the teeth and to help further dilute the stomach acid to help ensure the survival of the flora.