okay what you have are simple male spade connectors from the stock harness to power the ballast(bad because they can't handle the current on capsule ignition) and single weatherproof connectors to the bulb... NOT 9006 but the same basic idea.
if you can find a ballast that uses those weatherproof connectors you can just replace the ballast but it's only going to delay the problem that these are in a system that wasn't designed for hid.
you could spend 50-150 on a new ballast or set of ballasts, or you could spend that money toward a D2S setup that would give you a wider, more even beam.
it just doesn't make sense to me why you wouldn't buy a 5 dollar H7 halogen light for that side at the very least so that you could buy good components that are at least backed by a warranty, even if they're not in correct D2s hid optics.
but if you want to wait for a ballast or set of ballasts that have those single weatherproof connectors, that's your call. it just doesn't make sense.