DannyBoy Z-28

im looking to tighten up my chassis on my 97 Z/28 but i'm in high school and on a small budget. If anybody could give me or point me in the direction of the dimensions for a 2 point stb, torque arms, and a 3 point sub-frame connector so i can weld them up in my welding class i would greatly appreciate it. Thank you for taking your time to help a broke a** high school Camaro enthusiast