Nice scenario, thanks for sharing! It works well most of the time but it does get stuck occasionally in Heritage Found. Depending on where your teleport starts you around the Yyasulani crystal you may fly in to a building near it and get stuck.
I’ve used the Indexed Scenarios plenty of times. There is nothing wrong with using another person’s created scenario to save time and effort. If you see your character arriving at the same time then it is very easy to adjust the times of arrival/departure to make it look less sus.