HEY
I WILL DEVELOP website panel, based on the number of hashes the user mines on our website via the Coinhive API he can send that amount of requests through the back-connect proxy rotator.
The proxy rotator and miner are ip bound (no login) so we can exactly monitor how many the user mined and how many requests he used through the proxy rotator
You need to make the full system, the proxy rotator, and site run on different servers.
The proxy rotator should be in python, on panel is PHP HTML javascript and CSS allowed.
I got to be honest, I don't know what the price of this project should be that's the reason for the big difference between the minimum and maximum amount.