My 10m beacon uses a Freakin' Beacon Ider which was purchased at Dayton 2003. Built it at motel overnight and installed it on HTX-100 when I got home. Beacon IDer is running smoothly ever since.
This just keys the xmtr. You'll have to supply the xmtr and antenna. If you use a Radio Shack HTX-100 be sure to put it several miles from your QTH or else plan on not using 10 meters; the rig puts out all sorts of interesting "noises" across the band.
For more info on beacons check out firstname.lastname@example.org
Good luck !