Yes, I remember your 190SL,Dan. Back in those days, those rusty 190SLs could be had for just a few hundred dollars. The reproduction floor pans were not available so we just had to form flat sheet metal. 190SLs in good condition or restored were not worth much, so you could not justify too much money or labor in these cars. I bought a one owner, nice original owner 35,000 mi 190SL back then for $1,300.00
Today the state-of-the-art is so much better. The reproduction parts are formed perfectly and are better than originals being zinc plated. The high values of the cars can allow a skillful and accurate re-construction. Welding technology has improved also.