That is about where mine is mounted. It has to come forward enough that the horse shoe cut out in bottom plate is clear of boat. If not motor shaft can't turn. Kind of long explanation on how I did mine. Have dentist app first thing this morning. Will try to get you some pics today or tomorrow. But short is I used 5/16 Aluminumn plate with mounting bolts to it and counter sunk machine screws through plate to bottom of motor. With the sliding bracket you should be able to do the same. May have to drill different mounting holes for bottom of bracket. Think I would move it to the left just a little if you can get enough bolts through it. With mine mounted like yours is setting and actually a little farther to the side I have never noticed any problem with steering or keeping it straight.
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Charlie Weaver USN/ENC 1965-1979