At almost 10 years old, most of the Voltage specific things have probably been addressed. Everything else would be maintenance items like roof sealants, suspension, tires, plumbing and inspect the gas fridge if it still has one for proper operation. We’ve had our 3200 for 10 years and the list of defects corrected over that time has been a little long. We’ve found screws drilled into the black tank and check valves installed backwards. I recently added the Rv airflow system and had to correct the several quality issues from the original installation.
Congrats on the purchase!