Yup, Lauren Engineering is done and they supplied most of the vendors that carried them, I have occasionally seen them on Ebay for sale.
I bought the last Regal ground effects he had and asked then if he had any El Camino stuff like ground effects and nose conversions and he said no.
They do pop up for sale used from time to time. I got my old pair in storage after making a steel set. Got a sheet metal shop to do some of the long lineal bending for me on my material & patterns & finished fitting & capping myself.
So I finally found a ground effects kit on eBay. Looks like somebody is making them again. I placed the order and they showed up last Monday. I was so excited but what a pile of crap. They look like a 5 year old made them. Not even close to fitting and the workmanship was horrible. Sending them back. The only way to make them work would be to cut them apart and get the fiberglass and resin out. Bad deal.