Use an older version of Jungleflasher.
Do all the updates you need. Re-extract the key from the old drive and then flash the new drive as normal.
Because your 360 is already banned, it is not much of an issue.
You can spoof to target. or better still and i have had more luck with this, you can press the manual spoof button and load up. You can load any key.bin you have and select the spoof drive you want it to look like.
This is not recommended on any 360 that is still live enabled