HI LO kits are a waste, they just move the bulb and thats it.
Xenons do not have filaments. So they can not be just made to have less intensity.
The only way to have both function, is to have Halogen and Hid in seperate enclosures.
Another alternative is an Bi xenon retro(using OEM bixenon projectors), only 3 people on here have attempted/ got them to work.
Im one of them, I just ran out of money to finish mine.
DCMSS96 (dont qoute me on his name) has got his working.
He sent me some progress shots today.
Another guy (cant remeber his name but he has a white Roadie wagon with EBAY projectors that fit in the 9004 bulb)
That last solution might work the best for you.
If I see him again ill forward this thread to him.