I did these as a set. 3 connects to 4, 4 connects to both 5 and 6. You don't have to use them all of course. You don't need a hacked camera file for these. I kept the main areas within the boundaries of the default maxis/ea hood camera.
SleepyLand3
SleepyLand4

SleepyLand5

SleepyLand6
----
To Install - place the .sc4 & .png files in your My Documents\EA Games\The Sims 2\SC4Terrains folder (make sure they aren't in a subfolder or they won't show up. I zip them in a folder.)
----
CUSTOM NEIGHBORHOOD PICTURE
---------------------------
In order to create a custom picture to represent your neighborhood on the main menu, first save the picture you wish to use as a .png file (a 4x3 size ratio works best, but pictures with other proportions will be stretched to fit). The file must be named N0XX_Neighborhood.png (where XX is the neighborhood number). Then place the file in the neighborhood's directory (e.g., My Documents\EA Games\The Sims 2\Neighborhoods\N004).