There's a few options with the bigger flake - sprayed dry (like with the Flake Blasters) or applied 'manually' the old school way onto wet clear, or mixed with an intermediate clear (but this requires a real spray rig if doing anything but the micro flakes). I think your order is good - except candy would go on later if doing that (clear over the flake to get it level, then the extra step of candy, then yet more clear as a final top coat to protect the candy). Doing a silver sparkle is the safest option (if using colored flake if one sands through the clear while trying to flatten orange peel and cuts into the flake those will turn silver and the job is pretty much hosed - silver flake would be more forgiving...)
