Your coup must have these aspects to be succesful:
- a dark dry nesting box to lay eggs and nest.
- protection (animals,weather)
- feed and water stations
your coup will need chickens, if you want white eggs i suggest the white leghorns, other laying breeds include the rhode island reds and barred rocks but produce brown eggs.
you will need to clean out the poop regularly (the poop has high nitrogen and phosphate levels makeing for a good fertilizer i attached a picture of my vegtable garden which was extreamly sucessfull this season due to the fertilizer another added benifit.
you should also have a chicken run or a secure fenced area for you chickens to run around during the day.