Like others have mentioned here, there is no "ultimate Anaconda explorer build", because there is no singular exploration build, not since Horizons added planetary flight. Right now, I'd say there are at least three kinds of builds:
- optimised for planetary flight
- optimised for maximum jump range
- versatile builds (hybrid build between combat and exploration)
Let me give you a specific example. I have three Imperial Couriers in my fleet, all of them modded. (Let me know if you want to know the mods on each build.) One is built for maximum jump range, and can do 42.5 ly on a full tank, but has no SRV bay. (Build without mods is
here.) Its speeds are 315 m/s and 427 m/s boosting. Then there's one designed for planetary exploration, which does have an SRV bay, speeds of 496 and 673 m/s, but a jump range of 35.17 ly. (Build's
here.) I also have a combat-explorer build, which is a nearly top combat build (for the ship, of course), does 470/638 m/s but has a jump range of 26 ly - less if I equip an SRV bay. (Build's
here.) It's good enough to safely deal with single Anacondas.
Which one of these would be the best explorer build for the Courier? I'd say none, because one performs best at one exploration role, while another at another.
Now, the same would go for the Anaconda. I just didn't list examples there because I don't have three Anacondas.