AG EGP is available in shops (gold label) or the AG man at the shows. The PB's stuff is available online only.

Your Tech Wax is okay, as a quick, multistep product, but you'll get a better result from individual stage products.

Consider the PB's EX-P, followed with P21s Concours wax, as Frayz said.

Or, the EGP followed by the P21s.

These products will only give a good result is the paint has been correctly prepared beforehand, so take care over your polishing stage, and make sure the paintwork is as you want it.

Gareth