Out of curiosity why do you want to play 5th edition for a 1 shot? It's a new system and are you just trying to figure out the rules for a real campaign? Because if I ran a game for you, you'd be surprised how quickly you die in these rules by one mistake. For instance Wolves are now the TPK masters of level 1, screw Color Spray traps and Kobolds, advantage when they are attacking the same target? 4 Wolves will kill a party of 4 players depending on surprise round.