I have a character rolling along pretty well, who I decided to take on my third-ever trip to the Library. Both of my climbing sets were destroyed in the initial fall down the Rift, and RL 1 does not appear to contain a ratling trader (presumably killed by another monster before I found it?). So...I need a climbing set. Character is level 19, so I can't yet go to the MM, which I'm not sure if would be a good idea anyway. Already got RotHK. So I guess the real question is....if I'm going to engage in the incredibly frustrating task of "kill things and hope for a climbing set to drop", is any level of RL/UC better odds than the rest (based on DL, which I am aware of but am far from expert)?

(mist elf wizard, Bracers of Pure Might in a surge of power, acquired boar skull without needing to be doomed, wanted non-fire ball spell before tackling any of IQD/DF/antediluvian...hope I haven't slow-motion killed him)