X Head Assembly & Installation - Comments Requested

For intake I am using Fel-Pro 1213. Fel-Pro 1213 Intake Manifold Gasket Set https://www.amazon.com/dp/B000CNNHQ4/ref=cm_sw_r_cp_api_ylu2ybEEJW6YW

Is there something better?

I don't mind getting new bolts. Can I use grade 8 for a place lice fastenal?