You can't change just the cover. You have to change the entire airbag. The cover is riveted to the airbag, and is not available as a separate piece. Off the top of my head, to do a complete conversion, you need:
1991-1996:
- Front Emblem
- Rear Taillights (4 pcs, left, right, center, spoiler)
- Airbag
- Cassette Door
- Valet Key
- Owner's Manual Jacket
- Window Alarm Label
- CD Changer & Magazine
- Wheel Center Caps
- Remote Entry Brain, Remotes, and Leather Pouches
1997-2000:
- Front Emblem
- Rear Taillights (4 pcs, left, right, center, spoiler)
- Airbag
- Cassette Door
- Owner's Manual Jacket
- Window Alarm Label
- CD Changer & Magazine
- Wheel Center Caps
- Immobilizer Unit & Key set
- Remote Entry Brain, Remotes, and Leather Pouches
2001:
- Front Emblem
- Rear Taillights (4 pcs, left, right, center, spoiler)
- Airbag
- Cassette Door
- Owner's Manual Jacket
- CD Changer & Magazine
- Wheel Center Caps
- Immobilizer Unit & Key set
- Remote Entry Brain, Remotes, and Leather Pouches
2002-2003:
- Front Emblem
- Rear Center Taillight
- Airbag
- Cassette Door
- Owner's Manual Jacket
- CD Changer & Magazine
- Wheel Center Caps
- Immobilizer Unit & Key set
- Engine Plate
- Remote Entry Brain, Remotes, and Leather Pouches
2004-2005:
- Front Emblem
- Rear Center Taillight
- Airbag
- Cassette Door
- Owner's Manual Jacket
- Wheel Center Caps
- Immobilizer Unit & Key set
- Remotes
- Engine Plate
Things you can't change:
Owner's Manual (No Honda equivalent available)
I think that's it.....hopefully I didn't miss anything.