Hi Stuart - shipping to NJ will be around $35/pair. I've used the HFT jacks and there are a few that work well with the stands. The quality is at least average for jacks from China - which is the source of the vast majority of floor jacks. I have customers who have devised ways to use the jacks on a Cayenne but generally the stands are not tall enough to get a Cayenne off the ground (wheels up).
Thanks - John
630-430-8481
John@jackpoint.us (better email)