DHA's guide is best. U can supplement with lower fcr gear as well if u like.
Okay, I guess ill do barb now:I'll try to explain the build:
Its a wirlwind barb with 1 hell of a throw, and lvl 1 leap as leap and stun in general is nerfed. Since stun is nerfed I did not skill war cry either.
Currently the build is setup up to play vs:
Hammerdin, Nec, Trapsin, light sorc and can easely duel fire sorc as well by just swapping boots into hots.
I would however remove javs vs trap and sorc, and make room for full bo equipment in cube.
By swapping beast with stormshield 'eld' u have just decided to have low damage at the gain of block, so you might as well ditch ur gores to use shadows and then u get 75% block.
Swap scs as needed to get more life, as you now will have 30fhr from shadows on ur way to reach 48fhr. You only need the lc and 2 scs with fhr when rocking shadows or coa or guilaume or arreats.
This setup also fits FPK nice.
https://d2.maxroll.gg/d2planner/b30106f6You can easely read the damage here, it does however not include the chance to deal double damage in its number, neither the berzerk/wirl/double throw bonuses...
Wirl will land at 4fpa each axe, aka 2 fpa wirl. (12,5 attacks per second) and can easely handle stuff like arach slow. It will end up at 5fpa vs nec like any reasonable barb build.
Meanwhile double throw lands at a total sum of 5 fpa. 63 Ias is needed for that, you have 75. Landing 4,5 fpa double throw would require 98 ias which is not viable without valk 08 on a barb made for mainly wirl and berzerk but with added strong ranged skill.
The attack rating is great here:
Wirl: 17717
Berzerk: 18781
Double throw:
Lacerator: 17259
Winged harpoon: 23062
Now, what we have not discussed yet is vs ele druid, vt/smiter, foh, cold sorc.
Duels where you want both 2 axes and DR or Light/Cold stack.
Vs cold, i did not bother to add the small charms you should. A few 20/11 or 20/5@ and ur up for stacking cold sorc.
https://d2.maxroll.gg/d2planner/wa0106dkVs VT with high foh damage, swap some scs for more light res, and u only need the 1 lc for fhr,
we actually just run 20fcr break vs them.
https://d2.maxroll.gg/d2planner/1w01062iVs ele druid:
https://d2.maxroll.gg/d2planner/4y0106b0You can also run 37 or 63fcr + oak from wisp vs bowa if u want. Higher risk/higher reward.
Important breakpoints:
Fcr: 20 - 37 - 63
Fhr: 27 - 48 - 86
Again:
When u decide throw is not a relevant attack vs some enemies you put the javs in stash, then you add bo helm etc in cube instead. And you easy get 7k+ life.
The bo done on this planner is with 1 bo wep, 3wc ammu, 1 soj + normal gear....
Missing: 6 bo helm(which should be FALFAL to be able to bo with 2 sojs safe), as well as 2 bo wep instead of 1, and missing a soj xD So ur bo level can be: 8 skills higher.
If you decide to use a widowmaker instead of throws, or no ranged attack i can help with that as well. Will be very simular. Yet some easier setups for DR%.
Here the barb is without throw/ranged and can focus on having more life via stronger cube bo:
https://d2.maxroll.gg/d2planner/im0106vrMIN STATS ON JAVS:
300+ed/30ias/ETH
MIN STATS ON DIADEM:
2barb/20fcr/visio or base ar/2 soc (I really prefer the frw though)
Well, here i made it cheaper, all same items but worse:
https://d2.maxroll.gg/d2planner/6r0106qr 
D2:R