Remote License System (Automated)

I am looking for developer who have experience in remote license system.

I need an easy license system for my script, indicators and EAs. It is in MT4 but I am changing to MT5 soon. So it will be best if the solution can be use in both MT4 and MT5.

I have come through this website and wondering if any developer have successfully implement automated remote license solution that able to 

1. When the user trying to use the script, indicators and EAs in their MT4, the program will automatically check the client database (either in GetRespone or directly from my website host) see if they are qualified to use it or not.
   
   Note: I do have the system ready and storing the client information whenever they are qualify to use it or not.
   Note: Those that not qualify will mentioned in the database, and an alert notification should pop out in MT4/5 telling the user to contact the support team (email)
   Note: The database also stored multiple level of membership information. For example, lvl 1 member can only access lvl 1 EAs, lvl 2 can access lvl 1 and 2 EA and so on.
   
   
2. When they use the script, indicators and EAs in MT4, the system still store when they use it and frequency they using it. 
   
   Note: Each user data should be separated.
   Note: This help us better understand which product is more popular and have more people interest in using it.
   
   
3. I have the ability to change, add or remove the access of the client in my website. Does the program able to update the permission within 24hours and inform user that their access have reached to the dateline.
   
   Note: I have a dateline (aka expiration dates). Hopefully they can read when is the expiry date and inform the user 1 week in advance to renew their expiry.
   
   
4. I do frequently update and modify the MT4 program. Is there any way they can automatically update their MT4 program without the need of reinstall it again and again?

I acknowledge that this can be a huge project and have no clue how that would work or look like.

I would be really happy and open about any suggestions and ideas.

PS: The job will be prioritised to developer that show case their past project that is very similar to the requirement above. 

If you have any advance features or any related project that you did before would like to add on and believe it would help me more, just share it out, I am okay to reasonably increase my budget.