It's very pleasant to see that someone finally adopted this skyblock-ish idea and ported it into the DST universe! I always loved the idea of micromanaging and dst really enables this possibility of living their very own libertarian dream – a political concept that's anthropologically bound to fail in reality but nevertheless really appeals online on a very small set of parameters.
The Meteor Field would be needed for the Smooth Meteor, if you are in need of earthly goods there's always the chance of Petrified Evergreens! For gold there is the 6.6% chance to obtain it via digging up a burrow and a 0.86% chance to receive it as a gift by a befriended Catcoon. Personally, I think the Dragonfly Desert is the most important biom because it offers Tumbleweed spawners – no further explanation needed. I would also like to see the final rng-based spawner (graves excluded) à la Hollow Stump: Who doesn't love Wet Goop‽
In addition, I would love to have access to all – or most of the utterly important ones – renewable resource enabling bioms because unlike Minecraft DST does not offer casual random mobs with a variety of rng-based loot drops – Loot Stash is not a mob! – so the basics should be available from the start. I think the bosses make up a giant [pun] part of the game design, so I would highly recommend you to include the stationary overworld boss spawners like the Gigantic Beehive, or the Magma set piece.
I would also love to see this to include the ruins based loot table but I think that's a lot more work.