BlackBird Lighting has solutions including Projectors, but it's not cheap.
They just recently added the 93-97 Camaro Kits, and from what I've heard it's $1k for all four and ~$600 for lows only.
If you really want to jam an HID Kit into the Sealed Beam Lenses, I'd recommend:
DDMTuning.com
I've had their 55W Kit in my older Legacy for going on 2 Years now with ZERO Issues. I would recommend the Battery Connection Upgrade though as HIDs do take some juice to startup and having that makes them turn on EVERY Time without issue. So $55 out the door for a 35W Kit with Slim Ballasts is totally worth it...
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1996 Z-28: Bolt-Ons, Harwood Cowl Hood, 18" Black Z06s
2005 Subaru Legacy GT - Stage 2 - My DD
2012 Audi S4 - The Wifee's Ride (Wait - the wife drives the fastest of the stable?

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