I have #92 it has a top deck fill in the anchor bay. I added a West Marine external guage and mounted the guage near the electrical panel. I set the sending unit for 6 inch tank depth so when it reads below 1/2 a tank it takes a 4gallon jug of fuel without backing into the filler pipe. Care must be taken when fashioning a new cover plate and sealing the sending unit to the new plate. Use Teflon tape on all of the screw threads and it is best if you can punch in pim nuts for fastening the sending unit to the cleaning plate. All other info is as the other responses.
