Well, the principal of where the object is could be the same one as where the avatar is. In general, you will build your object in the same place you are located. "Where is the avatar", you ask? Well, Radegast has made a great concept to determine how far an object is from an avatar. When you press the applications (right mouse) key on the name of an object (which sometimes is not that accessible because people forget to give names to them...), you have the options that would work with that object, like touch, wear, etc. However, in the list, the objects come from closest to farthest, as explained in the guide for accessibility itself. And since Radegast has halted its development because, by what I've heard, the main developer is not doing well, someone with good programming skills and a good view of Second Life could try to see how it could work. However, for now, here is the link to the guide, so whoever is interested could check how text viewers show objects to us, and even owr position, which, if we type in the chat box "//status" with no quotes, it shows us our position in coordinates and direction facing!
http://radegast.org/wiki/Accessibility_Guide
Good luck!
André.