word order - Tag Questions "is he not"

"He is happy, isn't he?"

If you did not use the contraction isn't he, in the question above, would the correct sentence be:

1. "He is happy, is he not?"


2. "He is happy, is not he?"

Sentence #1 seems to have to have same meaning as the above question but does not become the subject complement of he? Is #2 the grammatical equivalent albeit archaic or uncommon in modern English?