I have for sale a Leopard I (old b/w model) incl power supply. The device is used for limited testing only. It can be yours for only E 150,- (excl shipping costs). For E 25,- extra ,you get a XM10 which you can connect to the Leopard for X10 powerline transmissions.
People with serious interest can contact me thru an IM.
The manual can be found here, a highlevel description here and a recent image of the device here
Happy Holidays,
Willem.