I looked all over but found the best prices for hilling discs at AgriSupply. The shipping was reasonable as well and they arrived in a few days. They are in Georgia or somewhere in that area. They have a great website.
Thanks for the links I am slowly sorting this out what I am having a problem with is terminology of the parts so I can search them on the sites and know what to order. I have 2 pieces of heavy wall tube to use. One piece is 2"x2" 1/4" wall and the other piece is 2"x3" rectangle 1/4" wall neither piece is long enough to make the whole implement from so I need to use them both one piece will need to be the tool bar itself (both pieces are long enough to make either part) and the other piece will be the upright portion of the "T" shape for the top link. I can't seem to find a fitting to hold the hiller disc shaft to the bar I can make one but I would rather save the time and buy that piece what is it called? Next question is I want to add 2 furrow sweeps but I don't know what they attach to or what that part is called? Another question about sweeps what angle and size?
I plan to build a simple "T" shaped tool bar that will attach using my 3 point like the one in the link posted earlier in this thread. Sorry for my ignorance I just don't know much about tractor implements but I have done a fair amount of fabrication and I have a machine shop so I can make most anything once I know what to make.
I purchased a "tool bar" for the 3 point that had several sweeps. Two large sweeps for making rows and several small ones for cultivating. I never did get the hang of making a row without pulling up large clumps of clay. Purchased two discs from Agri Supply. Problem solved. The discs just push the already tilled soil into a "hill" without pulling up large clumps.
I till my garden and then use my lawn tractor to drive down the garden in rows. Where the tires compact the dirt are my paths, and the untouched soil between the tires are my rows for planting. The rows work out to about 24 inches apart. Quick, easy and didn't cost me time or money to buy a new tool.