Hello,
This rocket is based on a design of scott manley. It can take you everywhere in the kerbal system. First stage will take you to low kerbal orbit. second stage will take you wherever you want and if you're a better pilot than me probably back to! You also could place a couple docking ports on the big fuel orbs and take more stuff with you on your journey.
Nuclear part near the rings of Dres. (these pictures are with an earlier design trying to use rcs but it manoverd like a cargoship so i went for reaction wheels).
better view of the craft
Specifications:
stage one has a total of 23672 delta v; stage two has 20553 delta v
craft file:
zip: https://www.transferxl.com/download/08vZWX1KLkztVk
pastbin (ctrl-z, ctrl-v): https://pastebin.pl/view/2e8f7c6a
Good luck and have fun,