Can the Bi-xenon headlight assembly be replace with Halogen or LED? What needs to be done? Ballast must be switched?

I have one Bi-xenon where the bulb melted the housing and I dont feel like dropping $750 or more for (1) Bi Xenon headlight assembley.

Suggestions? Can I replace both with halogen or LED and replace ballast or is there more to it?

 

What do you mean by "melted the housing"? Do you mean the lens or the plastic cover of the headlight?

I have some fog on the inside of the plastic front cover of the headlight with the shape of the light. It's is still ok and it is not that bad but can't this be cleaned on the inside?

 

Yes the haze can be cleaned off, annoyingly the inner face of the lense is extremely sensitive to small swirls and scratches..

Currently in the process of converting the halogen reflector high beam to an HID projector spotlight, progress found here