John Deere 89XX EDIT v1.0

John Deere 89XX EDIT v1.0 Now that I've received permission from a member of Custom Modding, I'd like to share my 89XX Edit with you. You'll find the following changes:
- AI helper works. Still has some problems at the end of each row but it should turn around without dismissing itself and won't leave gaps.
- New Sounds
- Additional wheel brands
- Tuned Engine option for the 8970
- New pricing in the shop. Starts at $55,000 before options
Credit to Custom Modding for the tractor, and Kriechbaum for the ATS sound pack I used to get the Cummins N14 sounds.