Mike,
That liner has been more of a hinderance than anything !! Because of that I'm unable to use an offshore style engine mount. I ended up have some solid mounts made out of billet aluminum that are thru bolted into the stock engine mount location.
Those were bolted into a aluminum box that is glassed into the liner, it seems pretty strong .
K-planes are going to be the next addition, just for the added running length.
Eventually I will add a extention box and a shorter lower and then I will be done.
Yes I did fix the Bennetts but I added a 540 so I never got too see how much the tabs added.