My number of available brew days is going decrease in e few month with the addition of a new baby to our family. Thus, I have been thinking about purchasing a few more kegs and making double recipes of our favorite beers. What I would like to know is what is a reasonable amount of time to expect 5-6% abv beers to stay good for if stored at 66 F? This will be assuming that I have purged the kegs and driven as much O2 out as possible. Is the expectation of 6-8 months reasonable?