Ok, then should be able to just use the docker version of Minio the iX will migrate to in EE. They’ve said they will allow the configuration of additional IPs for docker services to remove the port binding limit you currently have with the k3s apps (as they don’t support MetalLB).
iX have said elsewhere the probably won’t support a reverse proxy in EE initially so no option for that now that will auto-migrate. But you could run your own through a docker compose which EE should make easy.
In this thread they discuss the removal of limitations in EE and different workarounds for the limitation ATM. Notably a user details how they are:
So that might be an option. Use the official Minio app along with a custom docker app for the reverse proxy now then migrating the proxy into the new EE UI.
Other option would be jailmaker where you can easily bind an additional IP for the reverse proxy, keeping the Minio app, but think you said you were trying to avoid that (and I think there’s some trickiness talking to k3s apps from a jail).