OK, here's the list of factual information you're looking for. Consider it "recorded somewhere."
The 3,275 copy print run is accurate...confirmed and documented by Peter Laird himself.
No claims to the contrary by any other person not directly associated with TMNT #1 (i.e., anyone other than Kevin or Peter) should be considered valid.
No copies were set aside, designated for special use, or were even signed in a specific way for a specific purpose or promotion (although Kevin and Peter did give away some copies to friends, family, etc.) which likely had personal messages or signatures. Those copies are VERY RARELY ever sold due to their sentimental and/or collectible value.
Kevin and Peter never thought they'd sell all of the copies they had printed. They used the boxes that they came in for furniture in their house.
And finally, this picture alone is what I would say is proof of the print run being limited as has been well-documented and not artificially understated / low for the purpose of creating rarity. While it's hard to know how many copies are in each box, there are probably between 300-400 copies in each box (just for portability and weight). Get more pictures and info. here.
WOW what an incredible picture.
.... and I'm thinking.... are the comics taped to the boxes part of the 3275 count??
I'd still take 'em