I think that furthering our relationship with the Daughters is part and parcel with reducing the Citizen's Councils influence on us and I do not think we can really fully separate ourselves from the funding provided by another body. The taxes of millions of people is always going to make up far, far more of our budget than any attempts to gain our own income through trade.
Second part about the taxes being most important part of financing - definitely true. First part - not strictly necessarily.
First of all, HSWS already relies on financing, manpower and industrial production from three planets, rather than from Home exclusively.
Or, more specifically, from Home's government, Cassalon's and from Xyri's three different ones.
So if we expect that some standoff with Citizen Council is possible, keeping good relationships with other governments will be "make or break". If they would keep us supplied during standoff, we are somewhat ok already. If, on other hand, they would support the Citizen Council as "civilian government oversight over military", then we are fucked.
Second, HSWS is also a oart of Home's government. The government is divided in hereditary plutocracy, which sits on Council and is a legislative branch, and hereditary bureaucracy, which is an executive. And HSWS is probably most important part of that bureaucracy branch currently.
If we develop our relationship with other parts of bureaucracy - and not only the Militia and Wardens, but with say, financial bureaucracy and such, we can 1) Have our internal allies in the planetside system which would support us and 2) in case of standoff we would present this as "part of civilian government vs other part of civilian government" conflict, rather than military coup. That should ease Cassalonese and Xyrians into siding with us rather than with Council.
One of the more funny things is if we put our next ally to make case that both they and Home's government are obligated to finance and support the HSWS. As in "the Home's government can't pull out of fulfilling their obligation from defending us, the new beautiful ally, by the space navy".
Then, if we would have the financial bureaucracy on our side, they would keep transferring the funds to us even over the plutocracy's objections.
And we can make the case to other parts of bureaucracy, "as we are all descendants of the ancient ship ranks, we have a lot in common with each other, and maybe we should be more important than landowners and corporates"
The most important thing is to keep it from being noticed by Council. We keep gaining more and more power. The later the Council notices this and decides that this is the issue, the stronger woul be our position against it.
Regarding the Daughters - they can be useful situational alky, and if we can introduce a Daughter faction into Council to make social reforms and what not, it would be morally better.
But civilian government made of Daughters would also issue commands to us and keep being the rhesus monkey.
Maybe if council would be divided between Daughters and corporates and keep arguing over welfare, they would allow us to conduct the foreign policy in peace ( :