I had Steve @ Driven Exotics do my entire interior. Mine was in fact totally shot, my diablo has almost 100km miles, and the prior owner used it as a daily driver and used the car very well.
I removed all 90 pieces, drove them down to Gilroy, and reinstalled them myself. Full interior, all leather pieces, including carpet, but my headliner and wheel were both fine.
You can see the details on other Lamborghini enthusiast site, but here is my summary:
First, Steve is just a great guy to work with. He not only runs a great shop, but he is a nice guy, fair and very helpful. As I had never done an interior, let alone something as complex as a Diablo, he was on-call to help me through he tough spots. I literally called or emailed him over 100 times with questions as I was pulling and reinstalling the interior, and he was not only immediately responsive (usually returning my call within 1 hour), but also very patient. For instance, I would ask how one piece or another, he would tell me to look at all the old leather pieces (which he marked and returned to me with each piece).
His attention to detail is unreal. He selected the hides from various samples, had the leather thinned to the right thickness, had all the taps/dies for the headrest embossing, and the Daytona seat patterns. In addition to the stitching, a real tough spot was stretching the leather around the intricate curves and bends of the interior (the pod, the big dash part, etc.).
Another example is the bib under the raised dash, or the treatment of the defrost offset, the odd leg contours in the seat bottoms, the cross stitched exterior closures on the oh-sh(t bar, the door card stitching - all were reproduced perfectly. And when I mean perfectly, I mean perfectly. My god, the seats are works of art, plain and simple.
I picked up the interior from Steve in stages (about 8 trips in all), and both he and Jesse took their time to answer all my questions, show me techniques, and generally entertain me having fun learning about interiors.
My deadline was taking the car to Monterey last year. I got everything back together, and the day before driving down to Monterey I dropped a coilpack. I called Steve, and he knew how frustrated I was, so put together a fresh pack (coil and amplifier) and gave it to me to use for the weekend.
Sorry for the long post, I just cant say enough about Steve.