I took an old 1.09 build I had retired (nova orb) and rebuilt her cheap exclusively for Pit running. By doing this there is no rushing a new character and you can use what you have readily available. I used relatively cheap crap to build her. Skills are only level 28 or 29 but that's al you need for killing power down there.
This is a cut and paste from another post I did, so if it is odd in places I apologize.
Here's the build:
1.09 Ptoped Tal's Armor/Belt (15% MF)/Ammy (192% MF)
Ptoped Shako (74% MF)
Chanceguarads (40% MF)
SoJX2 (probably replace with a couple 30% MF Nagels) (for 60% MF)
War Travs (50% MF)
Occy (Mine is isted) (80% MF)
Stormsheild
With your base 100% MF this adds up to 596% From here, it is just trading for SMFC's Once you have 32 of the 7% that is another 224% MF for a total of 820% MF.
A couple of items here:
1) I know you are thinking Tals Armor is expensive. The 1.09 version isn't really that bad, and most want the 1.10. The 1.09 can be had cheap as a result.
2) There are a few things listed that are kind of expensive to most people. Some things to exclude to lessen expense:
a) the Ist in the occy- you don't need it. If you want to socket it, use a 10% MF jewel with a second mod (like a single resist) that can be had cheap. You can later shatter and resocket it with ist if you want.
b) Perfect Travs- get some 40's or there abouts. They are much cheaper.
c) All 7% SMFC's. Use 5% and 6% SMFC's and work your way up. 32X5% SMFC still yeild another 160% MF for you. In many public games these are left unclaimed or sold to Charsi.
3) I also carry an Anni- this is mainly for resists but this can be made up in charm selection or socketing. If needed, get SMFC's with resists as a second mod to make it up.
4) Stormsheild- I use for resists and PDR, but a Um'ed Lidless Wall, Rhyme or Sanctuary would work nicely in it's place to help pump resists.
Even with the shortcuts listed, you are still at 716% MF with base (741 if you use a rhyme sheild), and that's not too shabby.
One note on resists- only my lightning and Fire resists are maxxed. My poison is actually in the negative and my cold is around 40 or so. Don't worry about this thouigh- I have never seen a poison monster in the Pits and if I get wacked with a cold enchant I can teleport away.
A good def Merc (holy freeze) is also a great help but I would work on him after you get some of the other more basic items in place.
One last thing- I use the weapon switch to teleport with, so make sure what ever you put there adds up to 70% + FCR so you hit the first BP on teleport.
Hope that helps.
'shed