i havent tried it yet, but electrum supports compressed private keys?
Because i have read that some users imported compressed private keys to electrum and the pub adress was a completely different one.
unfortunately im not home so i cant test.
I have given you the information that you need. You can import it. It would work.
If it is huge amount of money, you can import it on wallet on airgapped device and use watch-only wallet to create the unsigned transaction and use the wallet on airgapped device to sign.
https://electrum.readthedocs.io/en/latest/coldstorage.html