Oh, perfect.
Um... Centering a team around a Guts user is hard. Usually, they just come in when they can and wreck what they can before dying.
With that in mind, if you want to Baton Pass to Flare, I would recommend Focus Sash Smeargle w/ Shell Smash and Spore. With as fragile as Flareon is, the reduced stats barely matter.
It's still OHKO'd by anything that touches it, such as Talonflame's BB or any E-Speed.
If you want to base a team on an Eeveelution, I'd look into Leafeon or Espeon.