Is it feasible for North American zoos to import Asian Pangolins (Chinese or Sunda) and Southeast Asian Owls (like Buffy Fish Owl, Spotted Wood Owl or Malay Eagle-Owl) from Asian facilities
"Feasibility" is a word both overrated and underrated in most zoo-enthusiast contexts that I read: if you mean possible as in easy/doable within law, it's not always the case for some exceptionally protected taxa, but for most animals it is, you
just have to look for CITES, national and local laws on the dealing of animals.
If it doesn't sound like a quick research, it's because it isn't (unless you know exactly where to look).
No rule about imports or exports is set in stone like some people make it sound, but right now, in the 21st century, we know there's many stakeholders to deal with to "put an animal on a pedestal and admire it".
Biosecurity, population management, genetics, veterinary treatments, threatened level, surplus dealing and geopolitics are only those who come up at the top of my head.
For a speculative facility, however, I see no use in asking for feasibility as the amount of limitations is always on the person who creates it: if you want to conceptualise a private collection that you could assemble in your backyard's shed/in your private ranch or a grandiose and over-the-top zoological garden with bits of unique taxa and monuments like Moscow, Berlin or Schönbrunn it's only up to you.
You should, however, be open to criticism in the way other people may know a thing or two about a subject that you may not know well or, even better, knowing that you know only if you know that you don't know®, expanding your knowledge on the subject and thoughtfully applying it.