I have run the skat track Edge V-paddle---22" haulers--and those sand skates you scored.  I liked the Skates every bit as much as the Edge v paddles.  The skates are much much more durable and 1/2 the cost.  I run them on my raptor.  they play, side hill and carve bowls very well.  They are not as fast in a drag as the straight paddle haulers.  And haulers sound wicked when you get them flying on the sand.  THe straight paddles dont carve and slide as well as a v tire but you can still do it.

You got you a great tire at a great price.  Unless all you want is a faster straight line speed you wont be parting with them.