Honestly, if you are establishing the community as anti-tankie, then the rule against sectarianism would seem meaningless, indeed misleading, and almost sophistic.
I suggest simply declaring outright the sectarian commitments of the community, as long as your enforcement will lead to such an effect in practice.
Every party is different, and every has a power structure that at various times will attract controversy and antagonism.
Most of the work in advancing workers interest and building socialist organization occurs on the ground through direct action.
You might consider participating in a mutual aid group or contributing to labor mobilization efforts operating near wherever you are located.
As you learn about various groups and their differences, you might find that you have a perspective more deeply compatible with some groups than with to others.
The government surely can.
The government has the power to levy taxes.
The government has comprehensive powers for regulating the value of currency, through control over the money supply.
At any rate, the government printing money for workers cannot possibility be worse for workers than the government printing money for businesses, as it is doing now.
I suppose, though, you might take comfort in how inflation now is being so effectively prevented, instead of causing needless human suffering.