smartcookie and SJS: There are more people making their own wine than you would think. If you are Brooklynites, go to the terminal market at grape harvest time and see what goes on. Its a little messy, and the results can be iffy, but it is more than a few meshugaim, i started in NY as a hobby, and it came in handy in EY, as I was able to make enough to get thru shemita, and the year after. In fact I overestimated, and still have gallons to go. This also helped me avoid a certain hashgocha that was getting hard to avoid.
On matza, YES YOU CAN HAVE YOUR OWN BAKERY. If you sift thru the halacha and the shu”t, it fairly jumps off the page at you that the commercialization of matzo is not a good thing, the halacha was written for the home or town co-op, and it is a huge enhancement of the mitzva to do your own. My personal interest in this has taken me to look at many operations, and one formative experiance caused me to be mekabel never again to eat a commercial hand matzo. If the mods let and you would like some how to, i can do an off site tutorial.