Not long after that thread was originally posted, Cresent Forge ran on to hard times. The owner tried to keep up the business, but for reasons I'll never quite understand, even with a good volume of business, he just couldn't keep the doors open any longer. Last I heard, the business, lock, stock, and barrel, was for sale.
I managed to piece together all the parts to build a "new" plow for myself a few years ago. Under normal conditions, I expect 150 to 175 acres worth of good service before any wear parts will need to be replaced. I've salted away a second change of wear parts just in case I live long enough to wear out the first set. Plows from "back in the day" are getting more and more difficult to find in good condition.
Plowing is returning to vogue on farms again. Todays "BT" corn leaves huge amounts of residue. Stalks build up over a few years and cause problems for even the best no-till planters. Chisel plows have a hard time "digesting" the surface trash. So many farmers who're doing "corn on corn" (growing corn on the same field(s) in successive years) are being forced to bury some of the residue. Plows are the best answer. The new breed of plows are EXPENSIVE and they are GIANTS. Those of us that just plow an occasional garden won't have much use for a 12 bottom, 20" semi-mounted plow.
Kverneland markets a few smaller plows, but they are REALLY expensive. Many of their designs are intended for specialty markets such as tournament match plowing. Not uncommon to see these plows selling in excess of $5000 for a USED 3-bottom model.
That leaves us to find older 2 or 3 bottom plows and "restore" them. (Or, buy the newer "generic" plows such as Lienbach, ect)
I've got an extensive collection of plow data, brochures, sales literature, parts manuals, and such. Most of what I've got is on plows built from the mid 50's through the early 80's. If anyone decides to re-hab a plow, let me know. I'll be more'n happy to help identify and locate parts where I can.
In case you can't already tell, I LOVE flipping dirt with a plow. Gotta keep those old plows on the job.