Pedal claivchords are rare (and the post seems a litle confused - is it a Clavichord or a Virginal - or some sort of hybrid?
I have seen one pedal clavichord - in the Early Music Shop a ew years ago (2mp) - if only I'd had money and space!
The book "Bach and the Pedal Clavichord" (see e.g. http://www.ohscatalog.org/jospbaandpec.html
) is an interesting read - but somewhat expensive to buy. I borrowed it via Essex Libraris soon after it was published (I've given up woth Bradford Libraries - they hardly seem to stock anything worthwhile, and charge a significant amount to borrow books from elsewhere - £7 when \I last asked). I supose, that it coyld be a useful instrument for organ practice - especially if the book is right and Bach conceived many of his organ works on such an instrument - and also in its own right - althoug I'm not aware of any specific repertoire for this, or its cloes cousin, the pedal harpsichord.