The cow elk reed kits are a MT 2 taper, just like the crow calls. There are two ways to make them. First, you can use a MT 2 reamer to seat the cow elk reed or you can use the Latta Method to turn it down in a chuck and use O rings to seat the reed kit. The Latta Method is in the tutorial section of the site. It is used for crow calls but works for bite calls too.
The Elk bugle kits are made exactly like the deer grunt call. There is a tutorial on the deer grunts too.
Both calls are easy to make. If you do run into questions, give us a shout and we will do what we can to help.
Al @ THO