Wow!! Hard to believe the first and second pic are the same car. Nice body!!! Under the hood looks like a rats nest! Speaking of rats nest check your wires. Especially the ones from the ecu in the fenderwall behind the passenger tire.
How did you check your tps without a scanmaster. There is a way to do so. How's the oil pressure? Got a gauge? Maybe the other guys can help on this one, but if there's no or low pressure the car won't run?
If it starts you're getting fire, so you can change the ignition parts if you want just for good measure. Now it's the cam sensor, tps, firing order (which looks close), maf, or fuel. Maybe even not enough fuel.
Did you unhook the maf and did it run the same, worse, not at all? Do not rev with maf unhooked.
I'll give you one thing!!!! It's a damn GN. You just crapped on the doubtful!!!! Me being one. LOL.
It's going to be a headache. Takes a lot of reading and once you get it running you're gonna want to go faster. And the vendors have all the goodies.