Custom exhaust help

The wiring on the drivers side is head shielded and actually not as close as it looks in the picture, the battery in the trunk and the wiring used is high temp welding cable with a heat sheild wrapped around it. After 45 minutes of running the car the fuel pumps remains cooler than the engine block I can grap it and it's barely warm. The alternator is no where near the header pipes so that will not be an issue. Also in driving and running the car it never goes over 180 so overheating is not an issue. I am not too concerend about clearance in the front there is a direct path back and I am also planning on coating the exhaust pipe directly under the front of the car with the same ceramic coating as the headers so that should help cut down on the heat. If I find the exhaust doesn't flow well I will either use the existing headers as a template for new headers with mandrel bends or if all else fails I'll go with fenderwell headers, but then I will be worried about tire clearance, over heating, spark plug changing and of course chopping up my fenderwells. I appreciate your observations and I'll let you know how it goes.