Missions & Complexes

probably 3.0 standing.

cheers

You will need 3.0 for level 3 missions and 5.0 for level 4 missions. The highest of Agent, Corporation or Faction is used.

If you are doing the distribution mission grind you are going to want to three important skills to at LEAST 4.

Social (consider going to V if you intend to do more than one rep grind)
Connections(IV is worth it, hard to justify the time for V)
Distribution Connections (Doesn't really pay off until Level 4 distribution missions, but is very worth it then).

Level 4 Distribution missions can be done very easily. My ship of choice is the Hoarder (mid sized Minmatar Industrial) With 3 cargo expander I's it has enough capacity to carry the largest cargo load a level 4 can give you, and it aligns faster and is easier to get into (skill wise) than it's larger cousin, the Mammoth.

Levels 3's can be done with a small sized indy (Like the Wreathe).

The downside to distribution missions is that, unless you are skilled in combat enough to do level 3/4 combat missions, (or have friends/corp mates who can help you with them) you'll end up declining a lot of storyline missions if you are unlucky enough to roll more encounters than couriers.