No. 3 is questionable-the "complete rifle before the ban" requirement was an ATF interpretation of the Federal Ban. No New York Court nor the State Police or Attorney General's office has rendered a similar opinion on the New york statute. The New York statute is similiar, but not identical to the defunct federal ban and differs as far as AR receivers go. (a Colt AR 15 receiver is an assault rifle in and of itself, regardless of features for example). So this one is a toss up.
From section 265 of the penal Law-definition of an assault rifle includes-
(d) any of the weapons, or functioning frames or
receivers of such weapons, or copies or duplicates of such weapons, in any caliber, known as:
(i) Norinco, Mitchell, and Poly Technologies Avtomat Kalashnikovs (all models);
(ii) Action Arms Israeli Military Industries UZI and Galil;
(iii) Beretta Ar70 (SC-70);
(iv)
Colt AR-15;