Welcome and thanks for the photo. I am working on my '73 and would to see more photos of your seats. Also, do you have glass fuel tanks?
I replaced the dual steel tanks (that were glassed in) with a single stainless tank under the bow. A little extra nose weight when full of fuel, but hardly noticeable.
The seats were done by Sunchasers out of Chico. I will get you some pictures. In between the front seats is a removable built-in ice chest, which sits just in front of the v-drive and on the floor. The lid serves as an extra seat up front. Really like the back-back seats!