The classes are, unfortunately, completely outdated. There's no real reason to train any of them.
As a general rule, you want to cover all elements with your weapon slots. There are several compression options, including Carnagebringer, Warmaster's Reaver, Time-Twisted Eye of Carnax, Cerberus' Fury, Ultra Omni Knight Blade, Carnifex Blade or Spear, Grenwog Lance and Star Sabre (probably coming back next month).
Zabura's Hammer or Morningstar Cross have great synergy with Bloodzerkers, but as you lack the Essence Orb, Lumenomancer Bloodblade may be the best light weapon for you.
Pike Pike deals +25% damage and uses Cha in place of Luck for stats, making it really great fro beastwarriors.
Kusanagi Sword autohits, which gives somenice utility to your autohit skills.
Armors and Shields
Taladosian robes have the strongest energy skill in the game - and it even works with CIT!
I would suggest replacing War-Torn Heirloom with Cerberus Ward (fire/dark), so that you can fit in the Fujin shield with its Dex drive.
As you're not a mage, the Kindred shield with a chargable qc sp regen would be a better choice than Celtic Wheel.
As mentioned by joac, Cha builds would benefit greatly from guest summoning spells, as they get 60%melee extra damage for ~22% melee cost.
The best fire guest is compressed via a misc, so you can use this slot for Purple Rain.
Valencia provides a little bonus to your LS rate. Now, bormally that would be useless for 0 Luck builds, but if you make Pike Pike your water weapon, you can use Cha for your Lucky Strikes!
Skeeter is an hp-costing guest, which allows you to conserve your sp for skills.
Nezujimbo has a Freezing attack, which pairs nicely with Frost Effigy and your Torontosaurus.
The best earth guest would be Doomquake Minions, but it costs tokens. Barring that, Twilly (heal toggle) and Mittens (paralysis chance) are reasonable alternatives.
Energy... doesn't really have anything exceptional that's not rare or tokens. I would suggest using Essence of Caranage, which both boosts the damage of your melee and ranged attacks and has a chance to do Backlash damage!
Mogsterio and Grimlord both have an hp cost, but they also deal 2x damage of a standard guest!
Underwyrmling is the only pet in the game that can harm monster's sp.
Mutant Egg from last week's release inflicts paralysis, which has great synergy with both the Aspis shield and Frostgale's Remorse misc. I would suggest using it for water, wind and energy elements.
Frost Effigy both freezes the monster and grants Freeze potency, which has great synergy with Nezujimbo.
Lepre-Chan and Fu Dog are still great for their respective elements.
Model 294 inflicts EleVuln, which synerguzes nicely with both Ultimon skill and Grimlord guest.
ZardAde pretty much covers all your elemental resists, Shadowfeeder gives you celerityand Minotaur's Pride boosts all melee damage. The other miscs can be replaced with the following:
Grakma Warhorn summons a fire guest that can inflict EleVuln.
Goggernaut Helm gives +10 bth to every attack on the field, which is bad for your blocking, but good forskills and pet/guest attacks.
Bell Shell heals hp based on damage dealt. The heal is less than that of CoRS, but it also doesn't reduce your damage, making it the better overall choice for offensive builds.
Frostgale's Remorse gives a boost to your ice/wind damage and grants paralysis potency, which synergizes with Mutant Egg pets and Mittens guest.
Murderator Gauntlet grants Str, Cha and gives you a chance to control the monster.
Morningstar Helm gives immunity to paralysis. If you want something a little more sp-efficient, Blood Ruby and Liquid Courage give resistances to paralysis and fear respsectively.
Hope the info's useful and don't hesitate to ask if you have any questions!