I believe, from what DB said, that the SRV and its associated gear will need 4 tons of cargo space, so you will need to find room for at least a 4t cargo rack in there somewhere. The PAS is the gear to allow Orbital Cruise and actual planetary landing, I think. Doesn't seem that an Eagle (of either variety) can really handle that and be a good all-round explorer. Flying without shields when you are going to be touching down on planets may not be the best choice!
It is as I feared then Have to use my Cobra then. *sigh* Cobra for everything!
Imperial Eagle is just a useless ship. I had hopes I could use it for planetary exploration, but nooooope can't have any of that can we. Who wouldn't want to return after a long exploration trip with your SRV and see that ship on surface..
So what is the Imp Eagle for? Combat? With 'Agile setup', nope, it handles like a brick compared to normal Eagle. 'Shield tankish setup' then, nope, to weak.
As far as I can see the only use an Imperial Eagle has is .. ... uhhhh fast courier/smuggling missions? Sure, but the Cobra is better there to with more cargo space, range and slightly better speed, and just as good handling. Go Cobra! Yey.