Trader-ID roundup

[CBY]

First of all, my long-term plan is to join RepEx at some point, but I am far to green for that at the moment. Meanwhile, I am going to stick to the generic Trader-ID. Speaking of which, I have some basic RP-related questions:

a) Can I dock anywhere?
b) Can I fly anywhere?
c) Can I mount anything or am I limited by my NPC reputation (i. e. no weapons from red factions)?
d) I bought a class 7 transport shield (1,2 mil) and put it on my humpback freighter, is that allowed?
e) Is the Trader-ID considered an NPC faction ID?
f) "Interspace Commerce" is flashing green, do I have to join the [IND] now or is that optional?

I try to explore the game mechanics instead of exploiting them. Unfortunately, that naive approach leads to silly questions like those above. I hope you don't mind.

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Julian.Eran
Celkon_Eran[trader] - deceased (see here)