As promised
Understandable, in your case, it looks like you have filtered your way through most of the “clutter”.
You have come to the right place
Pretty much, but xNT is equally capable of locks and access control as long as it is compatible.
Not many that will be insurmountable, with sufficient knowledge, equipment and/or social engineering skills.
This is OFTEN a POSSIBILITY 
, but not always, otherwise yeah, your logic is sound.
Applets is what you are trying to say, you will need some knowledge to deploy / implement them, alternatively, you can disappoint Amal by just using the storage space for NDEF data
That sounds perfect for what you are wanting to do.
What I would say though, Do consider the Flex (wedge) options, Here’s why:-
The procedure is very very similar.
Pain is Very very similar
The range is significantly improved
The FlexM1gen1a and gen2 have some key differences ( Have a good read through THIS )
That would have been answered by the FlexM1 link I gave you above, the xM1 is the equivalent of the gen1a in xSeries form.
Yes, it will do the job for MOST of your more common possibilities:-
EM41xx / EM4200, HID ProxCard II, or AWID
but as the others mentioned below, a Proxmark would be the “better” option as it will do ALL of your possibilities.
Here are your links
https://dangerousthings.com/product/blue-cloner/
The Chameleon Mini / Tiny are also some good Mifare tools, but the Proxmark will do that for you.
With your implants you listed above plus a cloner(s) of your choice, you will be pretty much ready to go, I am personally holding high hopes for the Flipper Zero
IF that can read and write HF/LF implants, I feel the pure convenience will be a game-changer for us.
Your phone, anything else you kind of need to have the THING you want to interact with.
I would strongly recommend an xAC small, cheap and useful.
Read this ( if you haven't already)
HOW DO I GET IT IMPLANTED
Here is a VERY informative FAQ about x-Series implants, some of which is covered below. But it is recommend you read these FAQs.
There are piercing partners but if there is none near you any body piercer should be able to implant this for you.
A doctor, nurse or medic would be able to but they will likely take more convincing…
A self or assisted install is possible,
The following links that will make this very clear that it is easy to do
Watch Installation procedure Guide 1
Watch Installation Procedure Guide 2
Watch Needle insertion angle
Make sure you are aware of
Vasovagal Syncope
- The implants you choose
- The implements you need to implant the ( ie. Flex Needle, if you get a Flex (wedge))
- The read/write cloner tool you choose
MAYBE some pain medication, but you really shouldn’t need it ( pain thresholds differ from person to person, so only you will know - Everything else you will receive in the box, including a DT sticker, that you will then need to go to
Where have you stuck yours ⁉ DT Sticker - #116 by teamhensler
IN THEORY, it is a good thing to do, and the Flexs will be no problem, but even with a Proxmark ( your best option ), probably the only thing you will have the possibility of being able to test in an xSeries syringe BEFORE implantation will be the LF.
Obviously, you could remove from the needles and test, but don’t do that
Of course, you won’t be able to resist testing after implantation, but be conscious of contamination
Also, be prepared to lose readability whilst your body heals. ( Swelling, bruising, fluid buildup )
Hopefully, between mine and the others, we have met your criteria.