I'd love to do something like that with Tarka, but two stumbling blocks...
Tarka is wider than a Trad, so even if I could find a hard top it wouldn't fit. So a custom manufacture would be needed.
The Easy up hood would have to be removed. OK, that would mean the spigots on the hood rail could be used to secure the rear of the hood.
So, for now it is a concept... but I urge you to get the hood 3D laser scanned so further examples could be made!