I'm brewing for a wedding and have 4 commercial kegs that I need to carb up to be ready for the event. The problem is I don't have a fridge to hold that much finished beer. Can I untap the commercial keg I'm putting the beer in after fully carbed and place it in the basement (64 degrees) until a few days before the event? I would then place them back on gas a few days prior to the event so they have time to chill back down. Will they be flat or have flavor changes?