Load your party, go to the statistics screen for the first player. Pool all of the party's gold to the first player, then remove him from the party (i.e. save him to disk), and then load him back in. Then pool the gold to another player. Repeat this for each player. Turn off the computer without saving the game and every player will have the gold of the entire party before. Repeat if wanted. If you're tired of waiting for morning to come, enter and exit the guild.