I'm not familiar with your coach, but generally the headlights come from production vehicles.
For instance, my 02 Dolphin's headlights are from a chevy astro, and the taillights from a ford E150 van.
Look closely at the headlights at the bottom for a TYC number. Mine are TYC 20-3177 and TYC 20-3178. Google that number and you can figure out what the headligts came from. After that the web is your oyster, hundreds of updated replacements available for almost any light.
2002 National Dolphin LX 6356
Workhorse W-22 chassis
Don't believe everything you think.