Guess I'd be looking at something like this, easily within reach: Cobra MK III
But I see that I can't upgrade Power past A3, and that makes outfitting for combat I think a little difficult.
I say that because my Viper is using an A3 and my power usage is fairly maxed out.
So adding modules in type 4, not really sure I can use to benefit combat...
Not really. The Cobra does have medium hardpoints but it's not a dedicated combat ship. It can hold its own and is incredibly fast (good at running away) but not ideal for taking on Elite Anacondas. You need something with more manouverability. The Cobra is a flexible ship for a range of different professions (I use mine for exploration) but it doesn't excel in combat at this level.
Try a Viper - save for a Vulture for a combat-orientated career.