Whether you are trying to get the daily or one of the other prizes doesn't matter. It's the same for anything that you do want to get.
As you say, I have been repeating myself, so I will try it from one last different angle.
You are right, the possible three chest items I listed probably weren't right as they assumed each one would cost a smaller amount of currency to open, similar to the shuffleboard. So would the following work for you?:
Chest 1 = Costs 100 to open
1 x daily prize - 18% chance
1 x mage battalion (10 squads) - 18% chance
1 x MM spell - 34% chance
1 x nothing - 30% chance
Chest 2 = Costs 85 to open
1 x daily prize - 16% chance
12 x KP - 18% chance
1 x IM spell - 33% chance
1 x 5% coin rain - 33% chance
Chest 3 = Costs 60 to open
1 x daily prize - 12% chance
1 x 3X2 culture building - 18% chance
5 x relics - 40% chance
1 x PoP spell - 30% chance
I'm quite confident that this is a reasonable consolidation of the shuffleboard prizes into a 3 chest system. Yes the prizes have worsened considerably since last time we saw the three chests. Perhaps this would work better for you. Yes, you can give yourself a bit of a greater chance of winning troops over KP, but on the flip-side nothing is guaranteed here, so you could still waste all your currency not getting the one you want at all.
In general I would say this is getting somewhat closer, but I mean this is rather hard to say. I don´t understand why you insist on making up completely new chests? The chests have been rather constant with minor changes in cost and prizes. The only big change I remember was when they replaced time boosts with troop instants. I would say if you want to create the most likely chests would be to take the 9 chests from last chest event and reduce the prizes in there to lower denominations...without changing too much otherwise. Maybe increase the cost a bit if you think that likely. I mean costs are rather unimportant, because it always relates to the amount of currency that can be gained. If they make the event longer like this winter event we get more currency which results in more rewards if the cost per chest is the same.
There are 9 chests and your 3 would be the mid to high price options.
A chance for NOTHING is unrealistic, has never happened before and I see no reason why they would do that. Replace it with some garbage price like runes...
A3x2 culture building? where do you get that from? does that even exist lol? Anyway, there were never any crap culture buildings in any of the chests, i don´t see why they would add them.
Your daily price chances are relatively high, the smaller boxes all had 5% or 10% chance, but then as I said yours are the bigger chests where we used to have 15%, 20% or 30% (for 180 chest), they used to have them in 5% steps and I see no reason why they would change that either.
Anyway as always the point of chests is that I can customize, if I want to get troop instants I can pick troop instant chests and if I want KP I pick Kp chests etc. Of course I don´t get a guarantee for anything, but I don´t need guarantees, what I need is an increased average of getting what i want. I don´t care if I get 90% garbage as long as I get on average 10% of what I want, rather than getting a guarantee to get 5% what I want.