If you take care to keep as much of their scent as possible when you move them they should be ok, you never really know with a pair though so you will need to keep a close eye on them after the move.
Don't clean (apart from spot cleaning pee) before the move & use all the substrate from the old cage, you can just scatter it on top of the new, then don't clean again for at least a few weeks so everything keeps their scent, don't clean toys or wheels during that time either.
P@H wood shavings are quite safe, any wood shavings can be dusty but they will be fine to use if you want to.
The best & most economical substrate is fitch if you want to use a lot it's well worth buying a bale, 10kg lasts quite a long time.
https://www.fitchrecycling.co.uk/fit...r/bedding.html
If you buy wood or hay or anything like that, cork etc it's best to freeze it for about a week before use just in case of any bugs!
With hay you also need to pick out any sharp bits that can damage pouches.
Cork tunnels or tubes are a great addition for them if you're looking to add more to the new cage.
With a cage like the Living World Green Eco Habitat you don't really need a digging area as you can just put really deep substrate across the whole cage.
A nice big sand bath would be good too.
The gaps in the lid of that tank are large so make sure they can't climb up to the top or mesh the lid to prevent any escapes.