deprecated wallet: mSIGNA - how to access private keys?

This is a question for the sligthly more tech-savy Bitcoiners out here.

I recently accessed an old wallet called mSIGNA. It was recommended about 7 years ago and I used it for a while.
Now I want to access the remaining funds. This would only work if either I can connect to a node with this outddated wallet - Couldn't get it to work so far.
Or by exporting and re-importing the keys to another wallet.

The good news: I can access the public key list that was in use. And found an amount of slightly above 0.01 BTC that I want to transfer.
I still have the password.

The wallet allows to export the following (private) information:
1. Seed word list. It's a 24 word list.
2. BIP32 extended key
3. Private key file (file ending in .priv) -> no idea what that is and if it can be imported in other wallets

Now, I have tried to import 1) and 2) via electrum wallet.
Here are the options I tried without success so far (wallet not showing any transactions in the tx history). Note, I am connected to a node and other wallets update correctly, so it's not a connection problem.
- KEYRESTORE
a) I already have a seed - here the import is only possible by switching to BIP39 seed
I tried all 3 available address formats (legacy, p2sh-segwit and native segwit) without success. Also Detect Existing Accounts doesn't find anything. I left the suggested derivation path unchanged - maybe with the right path settings this could be solved?
b) Use a master key - If I choose this option, Electrum accepts the BIP32 extended key exported from mSIGNA. However again, there are no transactions recognized.
- IMPORT BITCOIN ADDRESSES OR PRIVATE KEY - you can only import regular private keys, and I cannot export/access there from the mSIGNA wallet. - I played a little with this tool: https://bip32.tools/?lang=en But couldn't get it to create a list of private keys for me.

If anyone can either help me to import my mSIGNA keys into another wallet so I can access any remaining funds or get mSIGNA to work again (meaning make it connect to a node so I can just send my funds) it would be much appreciated.
Thanks in advance!

Made this self-moderated to avoid spam and farm comments. Anything off-topic or doing nothing else than suggesting something already explained in my post will be deleted.