Just installed realism mod, soooo many fuels, lots of engines, yawn, uninstalling realism mod......
Edit:
I've been watching a series of KSP re-enactments of historical spaceflight,
http://www.ksphistory.com/ which has motivated me to start a heavily modded career game.
77 Mods, the major ones being Real solar system, Real fuels, Remotetech, Tac life support, Deadly re-entry, Ferram Aerospace Research, Firespitter, KAS, Infernal Robotics, Mechjeb, Procedural Fairings, Procedural parts, Procedural wings, and most importantly for playing Real solar system with remote tech is Solar panel fixer, without this you won't get any solar power outside 200 million kilometres, also I have modded the default remote tech antenna ranges and costs to be more suitable, here's a spreadsheet of the changes:
Note that I have configured the ranges on the antennas to be enough to reach certain bodies including the distance of earths's orbit, they're pretty nicely lined up by range, cost, power consumption, and tech level.
Also I uninstalled several mods which conflicted with this setup, but thus far it seems to be stable, I also installed a texture compression mod, but it still wasn't enough to let me run a cloud mod, I would run out of ram
possibly due to the greatly expanded size of the system. Also I think it might have seriously reduced the quality of the graphics in the process :s, space appears far too dark, I may install a new skybox. Also importantly I have not installed the realism mod because I didn't like the changes it made to the stock engines, the real fuels mod itself already modifies real engines to be vastly more realistic anyway.
Edit: changed the antennas slightly, have updated the spreadsheet.