Forgot a few...

When I see a wine as being aged for 4 years? Is that aging time all in the
oak barrel? Or is some of it in the barrel and some in the bottle?

How common is it for winemakers to press grapes? Do they grow the grapes
themselves, or typically buy them from a local vineyard? Is it possible to
order grapes or is that a bad idea?

Is there a common batch size that produces good results? The typical beer
batch size is 5 gallons and scale doesn't affect it much as far as I am
concerned. I guess I'm asking mostly about oak barrle sizes. Are some
sizes better for good wine than others? Thus, distating the batch size?

Last one.. for those that grow their own grapes.... how long from starting
until you get vines mature enough to produce enough fruit for wine? How
much property does it take to grow enough grapes to produce say... 10
gallons of wine in a single season?

Ok.. I think that's it for now.

Scott