No Fuel Pressure after driving car.

That's looking all too familiar. It wasn't as bad when I was just imagining it,lol.
The bad news is the inside of the supply line could be looking all varnished up like that too. So if you clean it out chemically with one of those while-you-drive recipes, it will clog your filter. Keep a couple of spares in the GB, until things settle down.
Oh Wait, I see you are replacing the lines too, good move!