I've doubled Back to Fire Red, and my current team looks like this.
Ponyta Lv 30
Mr. Mime Lv 29
Magnemite Lv 30
Tangela Lv 29
Currently at Lavender town with the Silph Scope, and why yes, everything aside from Mr. Mime was Traded in, Need to find a better way to do that, holding off on adding Lickitung to the team until I get Surf in the safari zone. Lucky Egg is being used, and Eevee will evolve once I raise him to lvl 36 for Baton Pass. Curse my hindsight for not BREEDING eevees with that already added in.