Need a working BUS built

[Corwin Core]

I am the producer of a Private sim that is used as an educational environment for teaching life skills to autistic teens.

Part of our curriculum involves the kids learning to buy mass transit cards and riding the bus.

We have a really nicely designed bus we purchased from Apolon Motors, which is exactly right in look and feel for our program. (Big windows, roomy to move around in.)  But the script has bugs that make it very hard to use - in fact while it is designed to run automatically on a track, and it does, it breaks down and stops every 45 minutes or so,  The bus and script are no mod.  Apolon Motors does not answer my requests for help

I have a limited budget, probably around $200 US to commission a bus that looks and works similar, but that actually works.  If you could do this project  and are willing to stick with the project until it is working correctly, please contact me via email at jhoward@learningtimes.com.