BTW, that 85mm f/1.4 seems to be the pick of the litter IF it is in good to excellent condition.
The images are OUTSTANDING on nearly ANY A mount platform Gordon.
But John makes an EXCELLENT point also.
Gordon, you and the Mrs. know what type of photography you enjoy most. The 70-300mm would be great for your Aviation and birding, and the A77 really WILL give you another level up in both image quality and flexibility with either type.
The 500mm as you said, would be redundant. And the primary strength of the 85mm is portraiture, though it can be used effectively for other things.
If I were in shoes similar to yours... knowing your situation and what you like... I would purchase in this order:
1) 70-300mm G
3) 85mm G
... with VERY little space between choices 1 & 2.
GOOD LUCK SIR!!!