Aging homebrew for 10 years? Is there any way I can talk you out of trying this?
I'm with RC on this, for the most part. But you can try it, and learn from it too. Or learn from those of us who've done this. Or both.
I mean, I have 6 or 7 cases of beers been sitting in my cellar, with several bottles I've had on hand for up to 5 or 6 years. I often save a couple bottles for aging just to see what happens. In truth, the oldest ones are all past their prime, except for one Scottish 70/- that for whatever reason still tastes as good or better 4 years later than the month I brewed it. So I know we can get lucky once in a while. But that one outlived my barleywine which was good for a couple years but tasting quite stale now, I still have one or two bottles of that left. I've consumed, or dumped, many many dozens of aged beers over the years. Most of them were not great, and many barely hanging on for dear life. I wouldn't dare age anything for 10 years. It will be a dumper within 5 or 6 years most likely.
I've only ever bottled so I cannot comment much on long term kegging. Seems a waste of a good keg to age in there that long. Bottles you can sample one easily once in a while to see how it's progressing.
However long you want to age your beer... good luck, and happy learning, for years to come. Cheers.