The BHD-LHR return is a separate addition to the BA Holiday so just a straight 80 tier points, BA Holidays website would not give me the JFK stopover option. I'll be flying to LHR the night before and I am happy to wing it on the way home.
W213Sal calculated -SOF 80 + JFK 160 + SFO 140 x 2 x 2 which confused me