Thanks for the compliments :)
By convert i meant you can simply buy the OEM HID version Rx330/350/400h headlights and switch them out with yours. The headlights size and bolt patterns are exactly the same (not 100% sure- but based on experience, it tells me they are). You don't need to take the headlights apart at all. The wires for the ballast etc can be accessed from outside of the headlights, so you should be good with that too :)
Now, there are TWO "types" of the HID Rx330/350 version headlights. Obviously there's the halogen type (the type you have) but there are TWO different types for the HID headlights- which look exactly the same from the outside, so it can be tricky.
The first HID version has an HID projector and bulb, with only the auto-leveling. (No AFS function)
The second HID version uses a similar HID projector and bulb, but has the components for both the auto leveling AND the AFS system.
Aka some 04-09 Rx330/350's out there have HID without the AFS. So if you see an Rx330/350 with HID's, it still not might have AFS.
The 06-09 Rx400h's all came with the HID with AFS, but the Rx330 and Rx350's mixed and match.
The only way to tell the difference between "HID with AFS" and "HID without AFS" is by looking at the back side of the headlights. I don't have pics, but when researching the headlights you should be able to tell the difference. Some sellers might say "non-AFS" and "AFS" to differentiate the two, but it's best to look. Just don't assume because you see the projector that it must have AFS... The last thing you want to do is get the right side headlight being the HID AFS version and the left side headlight the HID non-AFS version. You'll be able to tell the difference in output and cutoff line shape between the two ;)
If you want, you might want to get the HID non-AFS version headlights, this way you can avoid having to worry about aiming the AFS motors...
BUT, the projector used in this non-AFS version headlight does not perform as well as the AFS version headlight projector.
Personally, i would get the HID AFS version headlights just for the better output :)