No worries! I had a billion questions... and STILL do!
Modifying the rabbit hutch will be your most cost-effective option, sounds like. I would recommend taking a look at some articles on here on ways to predator-proof your hutch. Quarter-inch hardware cloth goes a LONG way... chicken wire will not stop a hungry raccoon, and raccoons and cats alike WILL reach into your coop/hutch and grab at your birds. Your protection is their best chance for survival.
Quail can be kept very happily in a suburban setting. You don't need a lot of space for quail. Just house them adequately and they will be fine.
Quail are a great alternative for people who have HOAs that won't allow chickens. Keep in mind, though, that the males do "crow" around 2-3 weeks. You can Google it. It's absolutely charming, but your neighbors may not think so... Perhaps letting them know ahead of time and plying them with a few eggs will soften their hearts, if they find issue with it!
I think it's 6" sq per chick, and 11" sq per adult bird. It's ALWAYS better to build bigger or have more housing available if you suspect you will get more birds. For my brooder, I have two large cardboard boxes. I cut a little "door" between them, so the babies have PLENTY of room to run and stretch and jump and eat and play without being crowded, which encourages pecking. Give them enough room to get away from each other, basically. I've also got a nest made out of a washcloth, some sticks and small branches, so they can practice perching, and their food, dirt, and water, of course! I will add some of those little cat toys with the bells inside as they get older. My brooder is inside my home in a spare guest room that is completely covered by painter's plastic sheets... You'd be amazed at how dusty birds can be! Also, prepare to construct some kind of "lid" for your brooder... Quail can fly as early as nine days, I've heard, but usually around 1.5 - 3 weeks will start "escaping." (More than you wanted to know, I'm sure!)
I've always liked quail eggs, but I've only ever had them boiled. To me, they taste like they are already deviled.
Very yummy!
Quail need a MUCH higher protein percentage in their feed than chickens do. Quail need 25-29% protein, chickens can make do with 17-19%. Honestly, I'd suck it up, use the money you saved when you got the hutches from your grandmother, and buy some good-quality game bird/turkey feed... Right now, I'm feeding my quail chicks a turkey feed. Keep in mind that quail chicks have teeny tiny mouths, so you'll have to sift through the larger pieces or grind them up to make them edible. Keep in mind also, that if you are feeding anything besides "chick starter," you MUST offer free-choice grit to your chicks. I use a small mason jar lid that I've filled with dirt from the backyard... This allows them to eat sand and tiny pebbles to help grind their food. Chick starter is water soluble and can be digested with (you guessed it) water alone... But turkey/game bird feed isn't water soluble, so your babies will need a little help.
Meal worms, kitchen greens/scraps, and boiled eggs make excellent snacks for birds. Be careful, though... If you supplement their feed with treats too much, you can have fat quail, and that's dangerous to their health. I know obese chickens have a hard time of it, too. For this reason, I would advise AGAINST mixing your own feed or feeding only insects and scraps... Their protein need is too high. The occasional treat will be appreciated, but don't force your quail to live on meal worms, strawberry tops, and wilted lettuce ... not that you are suggesting that - I'm just saying.
I love questions! Keep 'em coming!
It's the best way to learn. After all, you don't know what you don't know.
MrsB
We've got Coturnix quail.
I had 16 eggs, incubated them, and wound up with 11 chicks, two of which died within the first three days (RIP Eloise and Hercules!).... So now I've got 9. You just give them heat, food, and water and watch them grow. 
