fshafly
Yes the YT forum is probably a good idea. Each of the brand forums has at least 1 guru for finding used partsof his favorite brand. Try the MF forum, and also the implement forum. Sunflower seeds (I presume you are planting black oil) because of their shape, are a pain to plant in a plate planter. They do great in most plateless planters, however, should you decide to go into serious production.