Party that makes use of most weaponry, armour, skills..you get the point.
No, I don't get the point (or rather I do, but it's not something you can realistically achieve in Wiz 8 without spoiling your enjoyment with too many constraints), but let's see:
1. You'll need a faerie ninja to use ninja specific equipment, faerie specific equipment, most of remaining weeaboo equipment that can't be used by samurai (apart from naginata) and Cane of Corpus if it drops.
2. You'll need a Bard - instruments and bard specific gear.
3. You'll need a Gadgeteer - omnigun, gadgets.
4. You'll need a rogue to use Thieves Dagger.
5. You'll need a samurai to use samurai armour some weeaboo swords and possibly Zatoichi Bo.
6. You'll need a caster, preferably versatile one so go with 4-school bishop. Bishop also handles few psionics demanding items, cleric-specific items and spiritual flavoured items.
7. You'll need a heavy armour person (fighter/lord/valkyrie) to use heavy armours, and some weapons.
8. You can have either monk or ranger in the remaining slot.
Further requirements:
1. You'll need at least one dracon or lizardman to use Fang of The Serpent dagger - I'd use dracon rogue, especially given how limiting cursed Thieves Dagger (possibly paired with Bloodlust) is to magic deprived rogue - Dracons still have their breath weapon to use at range.
2. You'll need at least one furfag to use Ring of The Beast.
3. You'll need at least one woman to use various pendants and necklaces.
4. You'll need at least one mook of martial profession (samurai, ranger or heavy armour person) to use Giant's Sword.
5. You might want a hobbit or gnome to use trynnie breastplate if it drops (not that it's worth it).
6. You might want an elf to benefit from certain bow, but I don't know if it ever drops in game.
Caveats and observations:
1. This setup won't allow you to use all class-specific special abilities, obviously.
2. This setup requires RPCs. RPCs don't go everywhere with the party. The best in this regard that aren't quest specific are certain unique Monk (minus casting ability) and a Valkyrie, the remaining non-quest NPCs to pick from that can be found relatively early are rogue, ranger, gadgeteer and bard.
3. Taking ranger will allow you to use some class-specific bows (not that great) and search skill (it's easy to miss some hidden stuff without it), rangers can also use Woodsman's Axe which can be very handy for a low level party, taking monk will allow you to realistically benefit from unarmed combat and rather unique flavour monk adds to the party while also being able to wield naginata (and Zatoichi Bo, should you decide to not bother with sticks with your samurai). One of two most verstile RPCs is (technically) of monk class.
4. This setup won't allow you to use all items, but the number of unusable ones should remain single digit.
5. Heavy armour person will deprive you of some gear depending on choice - fighters don't use lance which is nice weapon early in game, but are the only class apart from ranger who can use Woodsman's axe. Lords cant use cleaver but it isn't much of a loss.
6. With this setup you won't be able to use Wizard's Hat.
7. Such setup, if used with intention of wielding everything will spread your skills too thin to be actually effective, especially given that you can only use so much gear at the time.
8. 4-school bishop is pain in the ass to develop early in game and requires a lot of rigour and not picking spells throughout the whole game - definitely not a noob friendly build, much less if such noob wants to experience everything.
final suggestion:
1. You'd do best to disregard everything I wrote here and make your own party for your first playthrough. Seriously, I mean it.
