Gee, it doesn't look like you need anything else for your boat, but maybe you could fit another pretty rider without the splashwell in the way
. That bracket won't offer much floation and 350 lbs 2' aft is going to change your CG on an 18 quite a bit. You might need to add a sunning deck and a couple more biscuits on the pointy end to counter the the CG shift
