From the looks of the cables that come with the camera, you might not need to do too much soldering. The look to be compatible with the fatshark vtx Jr style camera inputs. The vtx should come with cables for at least power but it's not pictured. As others have mentioned, it's generally easier to power that from the flight battery. One could do that with a connection to the balance port connector on the battery (outer most pins for full pack voltage) or as others have suggested, splicing into the main pack battery connection.