i would recommend armour with ribbon. bhpl, hp+30% + an auto thing (if u hav auto-potion and sell all ur potions apart from your x-potions, thats a good technique) if ur part of the crew that says bhpl is unnecessary (jackasses!) then ribbon, auto-potion (as above) auto-phoenix and alchemist. the auto-phoenix alcvhemist combination ensures that as soon as sum1 dies they are brught back with full health.

dark aeons drop armour with bhpl n ribbon and 4 slots. its rare but it happens.
ribbon - 99 dakr matters (i'd use shinryu)
bhpl - 30 wings to discovery, bribe malboros 675,000 gil for a max of 4. malboros appear behind the agency in calm lands. if u find some chimera brains, u can also bribe them 245,000 gil for up to 4 lv4 key spheres.
auto-potion - stamina spring X4. get 99 wen creatin ornitholestes in monster arena (catch 3 each of dinonix [kilika] ipiria [mi'ihen] raptor [mushroom rock] melusine [thunder plains] yowie [yojimbos cave] zaurus [omega ruins] NOTE: for omgea ruins search around X=70 Y=35 on airship search
auto-phoenix - 20 mega phoenix's bribe alcyone 10750 gil in bikanel dessert
alchemy - 4 healing water
hp+30% - 1 stamina tonic make stratoavis in monster arena by catchin one of each thing in besaid to get 99