Hello Mjhover,
Sounds like a plan.
Make sure you have a way to transport it in the future if needed. Pickup and delivery are never free regardless of warranty. A good extended warranty is advised from the selling dealer.
Blades, belts, tires and batteries are considered wearable items so there is no warranty unless it is related to an item that can be covered under warranty (rare).
Have the selling dealer run and cut with it to demo the machine to verify the condition and operation before purchase.
I was a service manager for a local John Deere dealer for a few years, and I had a few surprises with "new" equipment.
Shy away from any excess electronics or gadgets a salesperson pushes on you. It is a mower, not a car. Salespeople are trained to push all the gizmos and gadgets to steer you into making a higher cost machine purchase.
The last thing I have to offer is only use non ethanol fuel if you can get it in your area. If not, use mid-grade pump fuel with a little Stabil added to it. Fuel problems are the number one issue with all lawn equipment, especially when they sit for extended period of time.