replacment sprue plate for lee single cavity

[hornsurgeon]

anyone know where to get a replacement sprue plate for an older lee single cavity? the one on the mold doesn't cover the entire cavity and makes a hump on the bottom of the bullet. the mold is flush, but the design of the sprue plate is poor. it has a lead edge that is bent up to prevent scraping/galling, but it is done so too close to the cavity and doesn't cover the cavity. follow? does anyone make an aftermarket plate?

[HORNET]

I have salvaged a couple of used Lee singles by drilling a 3/32 hole into the top, pressing in a roll pin, and making a new sprue plate kind of like the ones on Lyman singles. Not real pretty, but works fine and covers the entire base.