Mike -
Regarding the battery question. I ask because I have seen various way of routing the battery cable - some not so good, some splendid - like mine. LOL. This also affects where the right side fresh air duct goes onto the footbox. Email me I will go into detail.
ERA does offer some heat shields - aluminum panels that go over the primary pipes - buy them. They may have increased their offerings in this area since I did my car. I also made an aluminum/insulation/aluminum sandwich that riveted to the front of the foot box.
My car was even cooler than Turks. It was faster also.
Have your primary pipes jet hot (or whatever) coated, AND MAKE SURE THAT EVERY LITTLE OPENING TO THE ENGINE COMPARTMENT IS PLUGGED.
What I did is this: I turned out the lights in the garage and then put a bright light in the engine compartment ....I then climbed in the interior and looked for light.....in this case I did not want to see any. If I did see any light I plugged that hole. These are the things that make for a cool car.