The performance stack looks great. You can always add more things, but it becomes a matter of personal preference, budget, etc. I'm hoping to get back to training regular in the next month and that will be very similar to what I'll be using plus Anabolic XT and Anabolic Effect. I've got some lost time to try to make up for.
I take a lot of general health things. Too many to list now, but I'll try to list them when have more time.
I don't think there's really such a thing as too much as long as one is careful not to overlap too high dosages of certain ingredients (mostly stims) or take things that would offset one another.
For creatine for someone with hypertension I would suggest Creatine HCI or Magnesium Creatine Chelate because you won't hold the fluid weight that many people do with monohydrate.
For anyone wanting to read more on Creatine HCI and Magnesium Creatine Chelate, here are links:
Something else to think on would be ATP Elite - you would cover your creatine hcl already in that + a lot more for strength, power, and endurance.
https://anabolicminds.com/community/threads/atp-elite-strength-power-performance-recovery.339367/
I had considered making something like MyoVite because there's not a pack type product that I've seen that I was really impressed with. But wanted to launch the Multi first because it will be much more popular than a pack type product and may could even incorporate it into a pack type product bc the multi we are doing is going to have a scalable dosage so you can take the amount that best suits your individual needs.