Benny I didn't do the poll but I would like to ask a couple of questions. Is this to be a kit you are going to gather the parts for, or are you going to build the pendent and offer it for sale as a working unit?
My thoughts: I personally don't have time to build a kit much less the frustration of testing and then doing it all over again!

I would much rather pay extra for a working model that was well testd than go through the hassle of having to do it myself. I gave $200 for one 7 years ago that didn't work right and never did....so I don't want to go down that road again. $100 would be nice but I could give blood and get the $200 if necessary!
Mike
ps I would also need a 20ft cable with mine!