G35 HID Balasts... Question?

[Kenrik]

Ok so I have my 2007 projector lights (with bulbs) and when I swap my 03 lights with the 2007s I want to take the 2003 HID bulbs and hook them up in the fog light spot (Quad HID) But I will need two more ballasts FOR DIRT CHEAP, And I need to know what ballasts I can/need to buy.. Stock ballasts go for like $150 on ebay... but I would rather pay like $50

[Gimli G35]

Cheapo! lol , i dont think you can find balast for that low unless the seller is selling in mass

[Kenrik]

Well I found a conversion kit (2 balasts + 2 bulbs for $90) and otherwise I find just two balasts for $90.

Will any balast work or do I need special ones?

Also are there any cars I could steal them out of in a junkyard?

Remember I used to be a 240sx driver, I don't mind ghettoing **** up.