Already looked at WW.
They don't have Savanna
IIRC, the correct running board mats are Sand Beige for the '67-'68 Beetles that were painted L620 Savanna Beige...ie. the board mats "contrasted" rather than matching the body paint. I have an original '68 Beetle and when my original running boards gave out, I purchased the Sand Beige mats from WW and they were the same colour.
Fender Beading, however, is the Savanna Beige colour and it shows up on thesamba.com periodically...that's where I purchased mine (try Danny Zapeda). I tried the aftermarket beige beading and it was garbage, IMO. Better to hold out for NOS or good used beading. Good luck!