OCRing the file from here: cleaning it up, and parsing the information, I count 703 donors of $50 or less and 149 of $1000 or more (including 57 who donated the maximum). Of course, those donors of $50 or less only contributed $25,730 to his campaign, while those who gave $1000 or more...

Nah, it only took an evening. I won't vouch for it being perfect, but it looks like RoFo had 57 donors (out of 2725) who gave the maximum amount of $2500 – but they accounted for 20% of the money he raised.