Changing wishbones on a phase 1 to 172 phase2

[hefer81]

Ive been searching trying to find an answer if i can at all change the wishbones on the phase 1 to the phase 2 to increase some front castor on the car. If im correct i read that the phase 2 have the same setup as the cups bringing castor to 3degrees. Please correct me if im wrong and if it possible what parts would be required
thanks

 

[phoenix1]

new anti roll bar to star with