I reinstalled the fuel tanks after placing the new improved filler hole center finder, made with a bit of cable scrap in order to facilitate it's removal, A tap on the skin marks the hole, and I used a 2.00 inch knockout punch to place the holes, after removing the tanks. Then I placed the new fuel filler necks in place, after reinstalling the tanks, I chose the median height for which to trim the existing fuel filler necks.
