John,
You mentioned in your post ..."Without putting words in Bruce's mouth, my guess is he'd tell you to forget the undercoating altogether...unless you plan on driving it winters in snow and salt."
I dont plan on Winters, salt, etc.. but will be driving it on nice days, to car shows, and to Ohio every 2 years for the Pagoda meet at Joes. I need to ensure the underside is protected from rocks, etc.
So, hopefully I can find a nice paintable undercoating and closely match the original look.
Thanks!
Bob
bpossel (Memphis, TN.)
'71 280SL / '97 E320