That's great, I love mine.
Since my cobra is pretty low, I use four small ramps to drive on, so the arms/pads go under my side pipes. Works well.
(although, the first time I did, I let too much clutch out, and the rear ramps shot out like a gun into the street) lol
I bought these, but I got them on ebay for less. Their 4" tall, light weight, small & easy to store.
Plastic Car Ramps
Did he give you the manual ?
If you need any parts, let me know. Do you have the anchors that you'll need ?
I also recommend using epoxy in the holes before placing the anchors in and be sure to leave a 1/2" space between the top of the anchor and the surface of your floor, then tighten to specs.