Bit Beast Chip: Any you like
Attack Ring: Cross Attacker Gamma
Weight Disk: Magne Weight Disk Gamma
Spin Gear: Neo Left Spin Gear NMV Gamma
Bey Base: Viper Metal Ball Base Gamma
Luncher: Neo Reverse Luncher

Bit Beast Chip: Any you like
Attack Ring: Dragon Breaker Gamma
Weight Disk: Star Attack Gamma
Spin Gear: Neo Right Spin Gear Gamma
Bey Base: Custom Grip Gamma Base
Luncher: Anyone of the Ultimate Lunchers

Daichi - Beat Daichi and win tournament mode.
DJ - Beat DJ and win tournament mode without using any continues.
King - Beat King and win tournament mode.

The best parts are:

Bit Chip: Dragoon V2
Attack Ring: Upper Claw Gamma
Weight Disk: Magine Weight Disk Gamma
Spin Gear: NEO Right Spin Gear MWV Gamma
Blade Base: Switch Metal Ball Base Gamma
Launcher: One of the Ultimate Launchers

Note: You must beat the tournament before some of these parts become available.