1st Build – Where would be best to cut the chest plate and attach buckles? Thank you. Halo 3 Recon on A1 Mini. Pictures attached | Halo Costume and Prop Maker Community

I’ve marked off where I think would be a good place to cut and add the buckles underneath the armor, but as this is my first armor build I was looking to get opinions from people who have completed full armor cosplays. Would these markings be suitable? What has worked for you guys in the past as far as comfortability? I appreciate any input