Yes, that tank and almost everything in it will work great for gerbils.
The only I might consider removing is the multi-chamber hides because those have been implicated in declans (fights) in gerbils. Possibly because of all the tiny rooms and narrow doorways, which makes it easy for one gerbil to trap and bully another. Replace them with a single chamber house or nest box, ideally with more than one entrance, or you could try to remove the inner dividers from the multi-chamber hide.
You can leave the wheel in. It's a good size for gerbils and many gerbils don't actually chew their wheels. It's a thicker kind of plastic that's hard for them to chew.
With the sand bath, you will want to paint or seal that raised platform above the sand because the gerbils will choose that spot to pee on. They love a raised surface to pee on and the wood will be ruined unless it's protected. You will also want to do the same with the tops of any houses or platforms for the same reason.
Your tank setup is already very well-suited to gerbils as it is, but you could add some platforms and grapevines buried in the bedding to help support their tunnels.
Honestly, gerbils don't need a lot of "chews" as such. They will be fine with chewing their houses, cork logs etc, plus any cardboard and hay you give them. The pet store chews are mostly a waste of money. Things like willow balls are great fun for gerbils but they're destroyed in two minutes so they're more of a special treat.
Higgins VitaGarden will work for gerbils.
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