Here is a pic of one of my DAD seats, these were in my car for like a week so they are in brand new condition. And yes you can use the brackets supplied with these seats to bolt them into an s30. I had to drill 3 holes and bolted them in. This is a pic of just one, the other is in the same shape, no, harness is not included, and please excuse the mess A few people emailed me on these so throw me some offers and I might sell them, not 100% right now, thanks guys