If you want them for offroad use only, why not pick some used rims from a junkyard and get the recaps.
Following up on PaulC's comment, how fast you gonna push then down the highway. You got a lead foot?

I had a set or recaps once...snow tires of an extry set of wire wheels on my long lost 1962 MGA 1600 MKII. (Ah, what memories)