If you get a chance, go to any old time market garden/small farmers clearing sales, any very old machinery business. Look for "Planet Junior" , originally a set of handles attached to a multi holed plate, into these holes were all the various tools you need for breaking down and cultivating a large garden,
The tools ranged from ploughs, discs, flat weeders, cultivating tips. They also produced a hand pushed seeder to plant almost any seed.
The Chinese used them here and could take a grass paddock into vegetable garden by hand and sweat.
You could try any museums in the area, the simpler tools could be made by any local blacksmith/engineering shop. I have see broomsticks used for the handles.