I am looking for a manual jack plate, 4" setback. Most of the jack plates I see are wide, the top mount holes are 12 7/8" apart, on my motor the top holes are 9.5" on center, bottom is 5"

It's a 40HP Yamaha going on a Minihawk. I am looking for something sized for this engine, no need for extra weight or bulk on this little boat. Are the two piece jack plates solid when mounted? I like the idea if everything being tied together in the one piece but maybe that's not necessary?