If you have 1 copy of your key cards (Firefly Queen, Boneyard), you want at least 6 Hourglasses so you can draw through your deck quickly, even if you have less than 60 cards.
If you're trying to minimize the deck, then Sundials can be replaced with Dimensional Shields. They really don't last long enough anymore to be your only source protection (disregarding your Bonewalls and CC, as they're slow), even if they're a +0.
Cut the excess. That's Emerald Shield, the extra Feral Bond (why do you not have Sanctuaries or Miracle?), and other cards that require an improbable chain of events to be useful or strain quanta too much.
You should drop the 3rd Quintessence for another Elite Queen. They're pretty sturdy, so you can usually drop one against an FG that doesn't have soft CC. Plus, with earlier FFQs, you have more consistent fire quanta generation, and can invest in 1-2 more Rain of Fires.
The best shards to splash are the standard ones. 1 SoFo is much more useful than 1 Deflag, though if you're straining your quanta too much I'd invest in 1-2 Gravity Towers. Obviously, SoSac is a risky move, as this deck needs quanta fast, so no one would suggest it over other forms of early game protection. SoP is pretty good, as it boosts your Otyughs and against some FGs allows you to play creatures before you get your Quints.
Example deck:
Hover over cards for details, click for permalink
52n 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6u6 71b 74b 74b 752 75m 77i 7am 7do 7do 7hi 7k2 7n3 7n3 7q5 7q5 7q5 7q5 7q5 7q5 7q8 7t9 80d 80d 80d 80d 80h 80h 81q 81q 81q 8ps
But yeah, permanent-reliant decks don't really work as well as RoL/Hope anymore, especially slow set-up decks that aren't OTKs.