I've been quoted about $150-200 to get the arm rest done. You have to order vinyl by the yard via Katzkin and the local installer will just stitch it to match your seats.Not as far as I know. They’ve commented on here that they don’t. Some installers have custom made them from the same material as the seats. I don’t know if Katzkin just sells pieces or what. Seems like I’ve seen someone with pictures of door materials being done as well.
There are some pretty amazing installers out there. We have a local guy who custom builds everything from his own measurements but his pricing is more than double Katzkin.