We constantly store car for winter (5 months) a year. Just disconnect battery negative terminal, as battery will discharge (half, if not full capacity). PB batteries wear out very quickly when not full. It would be best to fully charge battery before leaving (with external charger) and leave it disconnected. You will be able to lock/unlock car with key
As for fuel and oil - I wouldn't worry at all. Fuel definitely won't go bad in such time period and oil does not go bad so quickly as well (you could change it every 2 years if you drive rarely). 7 month oil change is recommended taking short drive cycles in mind (warm up, couple miles drive, cool down). When car sits in place oil can definitely sit longer than 7 months.