Please itimize the $1000 worth of work, and we can comment more intelligently them.
Fluid and filter changes on a normal transmission, even with special fluids, runs anout $100 or so.
At 40,000 miles your vehicle will need some FACTORY DESIGNATED maintenance (read the manual), for which you don’t need to go to the dealer, except maybe the transmission.
The complete 40,000 miles service on my Nissan Sentra at the dealer was about $500.