Racemaster Drag Slicks

[noname]

I have a package of the Amt Tall and Wide" (11.75-16) drag slicks. Checked all the rims in my parts box and am having trouble finding wheels to fit the tires.  Does anybody know of an after market place (or other location) that would have proper period correct rims and backings to fit these tires? The tires are quite soft  so most rims without a good lip pushes right through them I find. Thanks✌️