Chris,
I think you forgot to tell us what model the G&B pump is. G&B made many visible gas pumps. I identify over 11 of them on pages 158 to 161 of my Gas Pump Identification book.
You can also find a number of G&B pump pictures on my website:
www.petrocollect.comJust go to the literature section.
Actually visible pumps do not weigh that much and if you eliminate the pumping part, they will be very top heavy. Leave the pump as is. Most of us restore the inside part as well as we restore the outside part. I am still working on the insides of my St. Louis 409, I want it to look as good as the outside.
Jack Sim