Check out this post I placed on M3forum a little while ago asking for a Mexico Blue (from a 997 C4S) pshop on a coupe:
http://www.m3forum.net/m3forum/showthread.php?t=221958
05CarbonM3 was nice enough to do it. Some of the cars
might look like what LSB would look like, but the last one IMO gives a good rep of what Estoril Blue would look like.