I have taken and reworked my old High Altitude Rezzer. It served it's purpose back before the build limits were raised, allowing anyone to rezz up to 4096 meters. Now you can place different builds into the rezzer, pick the build from the menu and pick the height. Rezzer will go the target height and rez the build. It allows the owner to set the rez offset for each different build.
Click on the link named "Multi Item Rezzer" on my User Page.
https://wiki.secondlife.com/wiki/User:Jesse_Barnett
Hope people enjoy and more importantly, hope people further their scripting knowledge.