Rank Used Avail Study
2 4 0 scrolls - will help you survive
12 6 14 plant
13 3 13 gentle walk - for ranking/exploring
14 8 7 knife - for ranking/surviving/pkilling
15 4 5 discerning gaze
17 8 1 blackjack - to deal with duergar/assassins
19 4 1 eye of avarice
22 6 1 deft touch - perfected (along with steal), you won't come out of hiding except on a rare, rare occasion
23 2 1 cutpurse - use if you knock people out
24 3 0 thief waylway - you can steal/counterfeit and they can't input any commands
25 2 0 appraise - physical equivalent to mage's identify
30 10 0 shield block - for survivability/ranking
31 2 0 doubleback - survivability
35 7 1 arcane lore - increases scroll potency
36 1 2 glimpse
37 4 0 veil of secrecy - will need when you steal lots of stuff
38 2 0 shadow disappear - survivability against entwine/cutoff
39 2 0 combat steal
41 4 0 warning skill
42 16 2 container stealing, acrobatics, counterfeit

With 2 points left over, you could spend on one of the 2 point skills or hold out for devious versatility. If you do the devious route, some suggestions for more skills would be lore of the ages (which will probably play a bigger role in the hero ranks), envenom for the poison bite (which will play a bigger role in the hero ranks), grease weapon (for when you knock people out), precision strike (if you join a cabal, will be useful in raids/defenses), improved hide (if you join a cabal, necessary for scouting), climb (niche, but usefulish), push/kidney shot (for cabals if you find yourself in a fight, just that little added bit of -str, combine with scrolls to maledict or with poisonous weapons)

As far as edges go, I got a lot of use out of Battle Tested for solo-ranking. I could often sleep the next hour after fighting, which helped speed things up. Then flee/gentlewalk/knife/repeat to kill mobs