Bottomland Hardwood in Floodplain - Food Forest / Plant Guilds

We have several hundred acres of bottomland hardwood floodplain in Central Louisiana. The woods have been untouched since they were cut for timber in the early 90's. The land is currently being used as hunting land, 3 hours from my home.

The ground is well drained most of the year, but will back up and hold up to 12" standing water for days at a time during the rainy season (October - March).
Native vegetation includes palmettos, cypress trees, gum trees, bodark, but the majority are oak varieties.

I want to plant a food forest, but it needs to be low maintenance due to distance from my home, and flood tolerant due to being in a lowland.
We have plenty of wood and fertile soil, so i was thinking about making raised hugelkultur beds.

Any thoughts or ideas are greatly appreciated.

https://www.fws.gov/refuge/Black_Bayou_Lake/wildlife_and_habitat/Bottomland_Hardwood_Forest.html
This is similar to our habitat.

Mulberries, elder berries, and Pawpaws come to mind.  They can handle a bit of flooding, but where the limit is, I don't know. I'd check with the county extension agent and see if they have any recommendations.