A browser crypto miner, like coinhive

Let's try this one more time: What do I know... I'm looking for a way to monetize my website users, and also know how much each user is contributing while they are logged in so I can share profits with them (I can handle members area, I just need help with the mining part, I'll just be passing the username through as a variable, or left blank if they're "outside"). I like what coinhive can do (accessing cpu power through javascript/browser), but they take 30% of the coins, so that ain't happening. Monero is the coin I'd like to use, but if there is a simple way to switch coins based on profitability that would be awesome. SO, BASICALLY: I need you to write a script (probably java?) that I will be able to send a username variable to (I will have that info from php login variable - again you don't need to worry about that part), and it will begin using the user's browser to access cpu power to mine. I assume there will need to be php/curl in the backend that will actually connect to a mining pool, and let me keep track of what each user actually made. TO BE CLEAR: I do NOT want to use coinhive - they take THIRTY PERCENT of the coins, I cannot be profitable/appealing for my members at that rate. I had two freelancers try to sell me scripts that just connect to them - no good. If you can make me a site like coinhive, so I can just connect various sites through it or just use it as a sand alone (and set a more reasonable 5%-10% fee so people don't get screwed over), even better! PLEASE, bid what you mean - I do not want to spend an hour with you, just to learn you only bid "x" to open the door. Anyone who pastes in a generic "yes I qualify, because I have wordpress, responsive websites, HTML5 and CSS3 knowledge" will be ignored. Please tell me you know crypto mining and even better monero experience. THANK YOU!