A lot if genuine. 25-3500.00. get it certified by a reputable dealer.
Protection is free and automatic.
Somewhere around $1.00 per 8.5x11 sheet. The lesser quality costs less, obviously. If you're looking for 4"x6" you can get those for about $0.30 each (cheaper if you buy more or lower quality)
Batch Image Resizer is free.
They frequently sale between $125 - $175 that is, if its authenticated by PSA or JSA