I have to voice some concerns about the present plan.
The enemy fleet was stopped at the demi-spire last turn. That means they will be attacking after only one movement next turn. Our transport is 2 movements out.
Personally, I don't think we are in a position to win this engagement at the moment. Our fleet is down a viper and several skiffs, while based on the fact that they have been burning skiffs, they probably have skiffs maxed out and an unknown number of super-skiffs as well.
I have been wrong before. We might win. If we do, everything is great. If we don't, our transport will arrive too late to deliver troops during the chaos of the fighting. It will be shot down without a fight. If we do commit to an all out engagement, we can likely shoot down thier transports which will stall them a few turns, but they will shoot down ours in turn.
Alternatively, we know that thier fleet will be engaged this turn, ending at the TC. We can take advantage of this to stage a landing on the unfinished.
If we move now, our fleet will end on wrack spire, and theirs on the TC. Next turn we can land both transports at the UF, with full fleet support, and there is no way they can threaten our fleet during this.
I believe that this is the thing to do. They are currently drawing resources from the UF, but not the TC. If we commit at the TC and lose, they have both spires. If we win at the TC, they have one spire.
If we commit to landing at the UF, we can have 1 spire almost assured.