[ERA535]

Mike,

The tunnel only fits one way so you don't have to do any "figuring".

As to the interior/carpeting. Sure you could do it - as Turk said everything is pre-cut and fits well, but you have to ask yourself this question...how much are you spending on the car? Is it worth having someone who does this for a living do it for just a couple of hundred dollars extra? Do you think your first attempt will be as good as someone who has done thousands?

I would advise spending extra time NOW on the heat shielding. I did and must say that it was worth it - I drove my car in 110 degree temps and the interior was (obviously) warm but not uncomfortable.

Are you putting the battery in the trunk?