Yeah what batteries did you use?
Look on ebay, 6000mAh Camcorder Battery
I don't know how it is compared to Sifuf's, his is much thinner, probably one inch. They're probably about the same from side to side, obviously his is smaller top to bottom. I think it's about the same dimensions as the Sixty-Free Lite, just about 1cm thicker for the battery.
EDIT: Looking at the SFL again, it seems mine is actually a couple cm less wide that his. About the same top to bottom, and about 1cm thicker still.