It depends on how you will hunt, and how long you will have the tats.
I'd suggest -INT/+WIT or -MEN/+WIT depending on whether you are not going to nuke or will give it a shot.
The physical tattoos are completely up in the air. I've known summoners that used all non-dex-lowering tat variations (-STR/+DEX, -STR/+CON, -CON/+DEX, -CON/+STR), and they've all been happy with it.
Personally, I'd save out on tats until 48 and grind while nuking from behind your summon, then start levelling in skyshadow meadow in AoE at 48. ;p
40-52 go +4 Int and deamon set and nuke nuke nuke
when you hit 52... a week later ;) you can switch to whatever setup feels best for you.
I have +4 Wit -5 Int ´cause you only need Int in pvp and in that case you will have Bsps so you will not miss it anyway.
The other 2slots you can do whatever with, I´m adding some Dex cause I want to be quicker and have a higher shield block rate against archers.