Are you asking about builds for yourself in case other players really want your preferred classes, or builds that you could loan to folks? If it's for you, Elf, Wizard, Bard and Druid already gives you a lot of flexibility. Since they're all spell casters, it wouldn't take much to flip to Cleric as well. (And rarely is anyone mad about having a strong support class like Bard, Cleric, or Druid in the party.) As others have mentioned, since PUGs often play on Normal, honestly, it seems like having ~5 Cleric-specific tokens (heavy armor, shield, helm, cleric weapon and a cleric neck) would be plenty to give you a decent build in conjunction with whatever you had on hand for the others (rings, shirt, feet, ioun stones, charms, etc.).
ETA: At Normal, rare Cleric-specific tokens would probably do it. So no need to dig too deep into the mulch pile.
ETA Thought 2: The other option, depending on what tokens you have, is to create a "few token build," where you only use a few of whatever higher level tokens you have, plus a Cleric-specific weapon. So if you normally use the Kilt of Dungeonbane, Boots of Four Winds and/or Skull of Cavadar to get +1 level, leave that on, grab a Cleric weapon, and there you go. Maybe keep a nice cloak on to boost saves. You're a 5th level Cleric running normal. Or if your usual builds run toward URs, keep your Ring of Heroism/Totem of Wonder (or Charming Set, Arcane Set, or what have you), grab a Cleric weapon, and you're good.
ETA Thought 3: Having Lenses of Divine Sight or the Kilt of Divine Healing would also make you a very attractive Cleric in any PUG. So I guess there's ~6 tokens, but maybe you already have one or both for when you play Druid?