schumacher float charger from walmart 21$. keep everything hooked up and connect. it will charge then shut off when full charge is detected. as static drain is detected the float recharges the battery.
stabil is 1 oz for every 5 gallons gas. jack the car up on jackstands and plug the muffler with a rag. put a couple small dessicant bags in the interior.
the charger can be used with a cover as the cord comes out the front just dont slam the hood closed. the charger itself sits on my bench