Going pure bone is commendable ... but more difficult as you said because of tight skill point placements.colony said:Oops, how did I forget about Stealth?:bonk:
Tal and Eth for 25 FRW, 25 FCR, 25 FHR and 15% mana regen...
Great early on and great at the end if you can cope with the almost complete lack of resists.
Also, don't make the mistake of putting anything into Energy. You'll be emptying belts full of blue pots early on, but you need those stat points for more life and/or dex. Frosties will almost completely cure most of your mana problems at lvl29, and later on you can switch them for Magefists/Trangs for more FCR
edit @ bill_n_opus: A summoner hybrid is quite possible if you use the Marrowwalk bug, but without it the synergies for spear and spirit will suffer, and it can take quite a bit of good +skills gear to get good skeles and good bone skills. The skill point usage on bone necs is very tight without Marrowwalks (20 Spear/Spirit, 20 in Bone Prison/Wall, and some into Teeth).
However, a hybrid does have the advantage of actually being able to kill magic immunes.