Buying boost from 3700 to 4000

[needmasteracc]

So, I really wanna get to GM his season but I have no time recently to grind.
I'd like to purchase a boost from 3600-3700 (Where i'm sitting at right now due to troll teammates every game) to 4000 (GM)

Give me your best offer (and perhaps link to your forum thread?)
I'm not gonna buy if you don't own a boosting page with all prices inside + reputation.

For payment, of course I use PayPal and I wouldn't pay more than $40 sorry. I can buy a GM account for $50