Interesting and I would be interested in reading it but I'm afraid the GTVA is outmatched, setting Species 8472 aside(not something done lightly) leaves the Borg. How many Cubes? Does the fleet include Tactical variants? It boils down to:
1 Hecate(10k crew)
6 Deimos(2-3k crew)
12 Aeolus(550-600 crew)
4 Sobeks(2-3k crew)
6 Leviathans(300-400 crew)
3 Anukets(50-60 crew)
1 Hippocrates(200-300 crew + 100-150 medical staff)
Umpteen Satis(40-50 crew)
Total - 50,200 GTVA
VS.
24 Borg Cubes(30,000 drones)
Total - 720,000 Borg
The Borg have sheilds, transporters, and regenerative capability and 720,000 drones.
The GTVA has 5 wings of fighters which are too slow to catch the cubes, even slower capital ships, no big ship shields, no transporters, and 50,200 humans and Vasudans.
Basically the Borg get 50,200 new drones. The GTVA doesn't really stand a chance. If by some miracle the GTVA does manage to defeat the Borg, they've still got Species 8472 to deal with.
They're toast with a side of sausage.
I used 24 cubes for that calculation because the Borg would lose with any fewer cubes.
:edit: I didn't mean to rain on your parade but you're comparing apples(the Borg) with choclate(the GTVA).