Hi and welcome to mightyram. Nothing an engine swap won't fix if the existing engine has taken a bad hit. There are a number of things that can straight up kill a 4G64 like a bad ECU module or ICM in the distributor, or even a dead ignition coil or fuel pump so it doesn't hurt to look at the possible causes of a shut down other than a seized engine. As with all noobs (not aimed directly at you lol), ask questions, get a thread up and going, post pics and keep us up to date with what you're doing and anything you run into