Agree with the above. While there are a few brackets out there, you have the boat and motor and can mock-up/figure out the best for you.
A small word of caution. I did use a transom TM on the bow, a good number of years ago. I reversed the head like airshot mentioned. It worked well, but the first rock I hit bent the shaft. If you have a composite shaft, it is probably more robust. When on the transom, a hit could pop the tilt mechanism, but when mounted in reverse on the bow, it is all the forward momentum against the shaft. The boat I had it on was a "lite" 14' semi-v, car topper like. On a larger, heavier boat, like yours, there will be more forward momentum for it absorb. JFYI