If your strawberries don't produce runners, you shouldn't have much of an issue. I grow mine in a trough container that is 1ft x 2ft. I can usually get about 6 in there (although I'm sure it'll take more). I have 5 northern highbush blueberries that are about 5ft tall (not including their 12" pots). How long it will take will depend on what size/age your plants are. My very first almost 10 years ago, were 6" bareroots and it took about 3 years for them to begin to fruit more than a few and about around year 6, they were hitting a stride. My others were already fruiting in 2 gallon size (probably about 3 years old when purchased) and I've had them for about 4 - 5 years now. I'm in a hi-rise and haven't had a problem with birds eating my fruit. I get carpenter bees up here who pollinate my blueberry flowers (thankfully). They have a slightly bigger probiscus than the bumblebees (and I've read that they can sometimes knock the flowers off trying to get inside and can also put a hole in the flower...lol). And despite them being territorial (I usually get 2 up here who chase each other away on occassion and wonder what the heck I'm doing out there watching them) they do a fine job. So being that you are lower down, you should get plenty of bees (hopefully bumblebees) to do the work without needing any blossom set spray. I don't know what to recommend about 4-footed critters (I would think they could chew through netting), except you might want to consider some hardware cloth (like plain window screen material that comes in rolls) and sortof make an enclosed cage around your plants. It would probably be easier to do since yours are dwarfs.

The raised beds are 3ft X 3ft X 10in high with a mix of mostly peat moss with 2 1/2 bags (50lbs each) of Natures Way Resources Blue Berry Mix and little bit of pine bark mulch. Its also topped with 3in or so of pine bark mulch. I also added sulfer and cottonseed meal when mixing it all together. 2 of the potted plants have 1/3 peat moss, 1/3 soil conditioner (composted pine material), 1/3 pine bark. And one potted plant has all the same plus some perlite I had laying around that needed to be used. They all seem to enjoy there home for now. I have some burnt tips on the new growth on all the plants at one time or another. Not to sure whats its from either. Was thinking maybe lack of water or water quailty? Im using municiple city water acidified with sulfuric acid to ph5. I have noticed that some of the new tip growht that gets rubbed other branches from the wind will get this burnt look to it. Attached is a picture that was caused from rubbing against another branch untill grew past it. Some other ones though Im not to sure about.

why is size so imperative??? are you having them professionally installed???? .. if not ... go small ... ken

I agree with applenut. Just try it out. There are so many microclimates. I'm really surprised to see on that website that Napa locations like Oakville have fewer chill hours than a lot of Central Valley locations, or even Concord. It always seems a lot colder up in the valley in the winter, and I see much more freeze damage. It's also interesting that there are such wide ranges of microclimates in a small area. In Santa Barbara county, chill hours range between 150 and 1500! And in San Diego county, they range from 60 to 800! Your 850 in Union City is not that much, actually. You're borderline for a lot of apple varieties, and you might have some trouble with those northern blueberries. I figure, it's generally better to get low chill varieties so you don't have to worry about whether or not it's going to be cold enough, since it won't matter.