I’ve finished converting the wee Glimakra School Loom into an Ideal and I have these School Loom parts for sale. Perhaps you can use them to convert a Glimakra table top loom (with hex warp and cloth beams) to a School Loom floor loom.
Two ratchet wheels, $50 each plus shipping . I’ve included a picture of the two ratchet wheels with a big Standard wheel for comparison. (The Ideal ratchet wheels are the same size as the Standards, but the center hole is smaller. The School Loom ratchet wheel has a center square that measures 4cm, the same size square as that of the Ideal.)
Six School Loom treadles. $20 each plus shipping.
The second picture shows a comparison to an Ideal treadle. The holes are the same distance apart, but the treadles are shorter from the back pivot point to the holes, and from the holes to the front of the treadle.
(http://www.ravelry.com/projects/Shearling/2009-felting-batt)
(http://www.ravelry.com/projects/Shearling/2009-felting-batt)
Whoops … just noticed that the Ideal treadle is one from an six-shaft Ideal with eight holes, not the 4-shaft Ideal with six holes….