Restore partial data from single file of SQL Server Full Strip Backup
There is no way to recover a transactionally-consistent database from only half of the backup media set.

The problem is that, while a full backup contains the data file, there is also a portion of the transaction log, at the end of the backup file, to ensure the restored database is transactionally consistent.

Even if you did manage to recreate portions of the MDF file from this backup, you would still be missing the transaction log that rolls back in-flight transactions and rolls forward completed transactions that took place after the backup started.

Making matters worse, if the striped backup is written out as interleaved files (which I believe it is), you'd have one out of every two 8KB data pages, and a corrupted log at the end. There's no functional way of establishing any consistency with this kind of recovery.