Lexus GS 400 Headlight Dual Assembly

[Angie Krueger]

I own a 1999 Lexus GS 400. I am looking to replace both front headlight units. The problem is that they are self leveling headlights. I cannot seem to find any of these on the Internet because it is a specialty item. My question is, has anyone attempted to change their headlight units with a standard headlight for a GS 400 and had success? Does anyone have any insight on this? Thank you!

[RX400h]

They appear to be available but at a steep cost. Based upon a quick search, the part numbers are:
811503A472 ($1270.68) driver's side
811103A152 (1154.74) passenger side

81150-3A472 Genuine Lexus Headlamp Assembly, Left (lexuspartsnow.com)