RTFW is my obnoxious short answer.
Yes and check the
artwork vendors is my (not much) longer, yet still obnoxious, answer.
Rebuilding an actual dedicated DD cabinet may be tough -- it was pretty damned rare. Someone here was doing a restoration of one last year, so you should search for those threads, although measuring cabs for plans is a PITA and people rarely follow up once they get the measurements (I have provided measurements for 8 or 9 cabs and have yet to see a set of plans from the people who requested those measurements).
OTOH, dedicated DDs weren't very common. The one that I played regularly was a generic Dynamo conversion cab, so maybe do with something like that.
I actually think I have a DD marquee lying around, but I think it was cut down to fit a conversion cab. I'll have to check.