I know that some exist. Have you tried googling for "RCT Disneyland"?
Also, just so you know, there is a forum on these boards dedicated to RCT. You might look there. I know someone did the entire resort but I believe they did it in RCT2. There are some really nice pictures of the park over there.
Hope this helps.
"How old would you be if you didn't know how old you are?"
- Satchel Paige