Those are great pics, Johnny. And the area is pretty spectacular...seems that way to me because I'm stuck here in a 3rd rate RV park (but it's only $350/mo) in a 'winters coming' area close to my family. But we did get up to 72 F today so that was nice. Gave me the chance to get the tanks dumped and the water tank filled real quick.
Anyway, if you can make them, but don't feel like it, then it should be an easy thing for you to find a shop you'd consider competent to do the job and I'd bet you'd know how much it would be worth. Trying to find those online might work if you have the part numbers, but for a '90? Doubt it would be that easy.
Also, you can search these RV Salvage Yards
for the parts. But expect to pay close to what the factory would charge for them.