Might I suggest you simply scrap what you are about to attempt here because it's more work than it's worth for very substandard quality. First of all the cheap Chinese CMOS camera you wish to use will disappoint so badly because they usually will do a few things here:
1) poor AGC (Automatic Gain Control) therefore you will see extreme dark then to extreme white outs when changing light occurs like from ground to bright sky.
2) black spot will occur when you are forced to face towards the sun, that's how CMOS "iris" deals with bright lights.
3) colors looks horrible compared to a micro CCD that fpv vendors sells.

Also to hack the TX on that camera is such a pain because of it's size, not to mention you will attempt to buy those horrible A/V TX & RX from Ebay. Again too much work for what's worth. (BTW those Ebay A/V TX & RX are ok for ground use with the camera at a stationary point, but really.. have you've seen the internal construction? I think when they pay someone low wages, they don't put the care into soldering components.. so much globs of solder everywhere!) Ok I admit it.. I am one of those suckers who bought one LOL!

Truly you are better off to shop at www.hobbywireless.com , www.futurehobbies.com or www.hobby-lobby.com (Pilotview2400) for a product that is cheap enough for the average working joe and proven to work with out disappointment because they are FPVers selling stuff to FPVers.