Inmoov Head V3 parts

Ive been trying to find the right front piston and base for the neck V3, but all im finding is the one that has the tabs on either side coupled with a little plate with the same tab cut outs in it, and I cant seem to find the right setup to place this type of piston/base/bracket into the neck. Every other inmoov ive seen on the internet with the V3 neck uses the neck piston without the little tabs, but where can i download that?? lol Ive been on several sights that have the houston neck, and the newest neck, but noone has the V3 front part!. Does anyone have any information or a website?