I just finished a run of 2/3 scale Perpetual Motion Holders. These are more practical freestanding desktop versions that can perform all the same functions as full size versions. Without the wire these unites weigh approximately 7.5lbs.
The additional coil includes a core of the same length to perform Leedskalnin's AC tests and his Best Machine demonstrations.
If you would like to wind your own coils (includes the 3 spools and additional core piece) the cost for units without the wire is $350 plus shipping.
For units with the coils the cost is $400 plus shipping. The main 4" coils are wound with 18 gauge magnet wire. The extra coil is wound with 20 or 28 gauge magnet wire.
These units were waterjetted out of 1" plate steel. The faces were then machined to save on polishing time... The spools are cut and lathed by me using 6061 aluminum.
If you're interested in purchasing one contact email@example.com