I think the cheapest option to control the quad with FPV Freerider is the E-Sky 0905A USB simulator, I'm using it and it works without a flaw on both the versions (classic and recharged) and, of course, with many other simulators.
A brand new one goes for like 20 bucks on various sites... if you are going to pay a similar amount (or maybe more), I'd definetely suggest you to buy the 0905A.
Just my 2 cents! ;)