I have updated my post on the first page (Post #2) with a guide on the quest. I have used multiple spoiler tags to allow people to get hints without getting full answers unless they choose to. If you have a combination that I haven't listed in my guide, please post it here (in spoilers) and I will update all the known combinations

Edit: Spoiler tags here use HB instead of SPOILER in the code

For all the lack of substantial rewards (which you woud have seen when you started the quest) and the pain of figuring out #4, I actuyally quite enjoyed it.