My plan is to head out to Colonia, then pick a direction. The limpet control is simply I would hate to stumble on someone outside the bubble who needs fuel and be unable to help them (even though they are NPCs').
Here is my current Anaconda build.
My thought is, should I go for a Cutter before heading out?
Have you flown this kind of distance before? If not, be aware that the amount of jumps required is collosal; the kind of people in Exploration are a self selecting group who dont mind hundreds to thousands of jumps and days of travel time. Get your two current choices and plot a 20,000ly distance, then give yourself a rough time of 1:30 for each jump to see the kind of time scale you're looking at... then remember that Colonia is just a little further than that, and you have to come back too.
I flew with a friend to Sagitarius A* whilst he was in a Clipper; there's something to be said for using what ship you
like the most... but he wouldn't do it
again because the commitment was punishing.
So I would argue for maximizing range, which you wont be able to do as effectively in Cutter. It's possible, you can shove it beyond what an Asp Explorer used to get, but you'll halve the travel time in a well specced Anaconda over the Cutter.
AMFU size isn't important; it just gives more charges. Take more than 1 however to repair the other if needed; however you shouldnt be taking any damage at all unless you whack a planet trying to land.
With the new engineering, anyone can get a monster exploration range like mine. Im carrying an SRV, all the scanners, a 7a fuel scoop, a docking computer and a tiny shield just to avoid planetary bumps if I feel like landing. All fully powered. And I have 71.86ly range. That's a tiny bit better than most can get because I rolled over the current maximum on the only module that doesn't have a Grade 5 upgrade... for now. But you can get within .3ly of my range, which hardly matters.
You can't boost with this build, but again, you'll be in supercruise for the vast majority of your time, and if you need to boost because you're coming in to a planet too fast, you've likely already screwed up too badly. So don't worry about not having it.
Don't add more fuel tanks, weapons, anything. It all adds unwanted weight. And DONT carry any cargo, because if you do and you get interdicted the NPCs will fire on you. With an empty hold they'll ignore you.
And do take a docking computer just to get rid of that "20,000lys and I've forgotten how to dock" concern.