Okay, whatever you do, Don't hook anything else up to the starter but the battery cable with the little metal tabs on it!!!
The ground strap under the air cleaner tube should just go to the negative battery terminal tab if I recall correctly. It has been more than two years since my battery was up front so give me a break on that.
The ground strap on the motor mount in the one picture goes to the firewall above the PCM plug, passenger side. Just screws to it.
The one off the fender just bolts somewhere to the transmission, there was a bolt near the hydraulic clutch line access port that was perfect for that ground strap that I used.
THe bracket you are talking about is not something I remember, but I know that it doesn't go to the electrical hookups of the starter. I think you'll have to wait for someone with a relatively stock intake area to take a look for it and report back. Leaving that bracket off versus having a positive electrode sticking out from the starter would be better.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black