there is an old mod, mainly it added a few srb's and a couple new rockets, called

[0.23] World Space 0.5a4

by http://forum.kerbalspaceprogram.com/index.php?/profile/70522-lovad/

Lovad

there was a post in Oct 2016 saying he was still around and working on the mod...but it has not been update for anything past 0.23   I used to use it as my "go to" mod to get into orbit

just an addition to the list if you want it.