In response to your requests, these interest me the most:
Modest
Ability: Rain Dish
31/x/31/31/31/31
Egg Moves: Aura Sphere, Dark Pulse, Dragon Pulse
Dive Ball preferably
Adamant
Ability: Speed Boost
31/31/31/x/31/31
Egg Moves: Baton Pass
Adamant
Ability: Adaptability
31/31/31/x/31/31
Egg Moves: Dragon Dance, Aqua Jet, Superpower
I can trade 3 of the Pokemon you requested for these (I'll let you pick which ones you want for these) once I get back Wednesday and can start breeding in Gen 4 again. Since I can clone the Beldum in Gen 3 with ease and it's Def and Spe are shy of perfect, I can send one as a Metang your way for whatever junk mon you don't mind parting with.