OK, here goes - a test of uploading a pic of the battery:
and a pic of the cables going through the floorboard:
the outboard-most holddown bolt connection (viewed from under the car - this is the holddown that is behind the battery box pictured above:
and finally, the ground connection from the negative battery post - it sits on the frame rail almost directly under the battery:
I couldn't get a good picture of the motor ground strap, but it's a braided ground strap from the block to the frame rail right beside the ground for the starter.
FWIW, I haven't had any problems with this battery turning my motor except back when I was having the fan problems. The fan was wired in such a way that the thermostat could keep it running even after the ignition was off, so it would drag the battery down. If I tried to start it after only a few minutes, while the motor was still hot and the battery was weakened from running the fan, it would have trouble turning over.
JLW