For a first setup, you've put together a fantastic equipment lineup and that driftwood basking area is a great touch—using stainless wood screws is a solid choice for durability and safety. The Anubias choices should tolerate the turtle's activity well. If you notice much plant uprooting, you might anchor the roots with rocks or try floating plants as an alternative.
For future upgrades, consider building a larger above-tank basking area—this saves swimming space and can be adapted as the turtle grows. When moving to a 120+ gallon, external canister filters rated for more than double your tank's size will make maintenance much easier, given the high bioload of turtles.
For others with less active or injured turtles, shallower water with easy-access ramps and more resting or basking points helps reduce stress.
Out of curiosity, have you noticed if your sideneck prefers floating or crawling through the wood more? This might help you tweak future driftwood placement as the turtle grows.