I have a pair of stock headlights (non HID). One headlight has moisture all inside of it & needs to be totally replaced. Lexus stated that the computer also might have moisture so everything needs to be replaced...Is it possible to buy a set that is HID & will it work with my setup?

 

Start fresh and change it all out to new headlights with HIDS. Kinda expensive for the OEM HID version. If not crack open your current headlights re seal the enclosure and put aftermarket HIDs. Anything is possible man. There's threads on conversion somewhere.