It is better to lower summoning duration. 10 point eliminates the paralization.
My builds would be, as every doll gains 4 skill point from doll pool, 15 point from DK, 0-20 from "hero", PLUS whatever doll skill the DK invest into before leaving:
Untility Doll (does not fight):
- this doll does nothing but has 1 utility skill at lvl 20. Like Sharpening, Identify (are there lvl 20 items?), Repair (same question) etc.
If there are only limited use of utility skills:
- 4 alchemy
- 7 identify (maximum item lvl I found in the main game)
- 7 repair
- 1 extra (extra distance?)
Fighting Doll:
- 10 lvl respawn duration
- 20 in named weapon type (everything except durability)
- level upgrade as much as necessary