Based upon my final loss (80K) and load (34K Sensible) numbers and the feedback in this thread I believe the following systems will meet my needs better than the original proposals
Sys #1 Bryant 355BAV 100K in (not CAV) and 286 4 Ton 16 Seer HP
Sys #2 York 2 Stage Affinity 100K in and 18 Seer HP (9.8 HSPF is the deciding factor)
My thanks to all who participated in this thread as it has given me insight into the complexity of selecting the appropriate equipment and ensuring that the contractor I select knows why he is matching a certain furnace with a specific heat pump. It also gave me cause to run my own manual-J (something 3 out of 4 contractors refused to do). I'ts now obvious why pro's should do these calcs before recomending equipment and the need to actually measure the insulation thickness in the walls.