fenderwell headers

That will work if done correctly, you may need to have supports on the inside of the firewall to the floor, and tie the shock towers to the tubing.

Also, don't cut the entire fenderwell out, leave the top edge and the core support so you have something to bolt the front clip to and keep it aligned.

The down side of this is if you get caught in the rain, you will make a mess of the engine and can short out and corrode the wiring from the rain water.