I am currently in the process of configuring my IBM 5160 to be as updated as possible, while still looking like a 5160 for the most part. In order to restore originality, I need either an ST-412 or ST-225 hard drive. I have an MFM controller that is set up for an ST-225 and can be configured for an ST-412 as well. (Mainly, it just needs to be configured for the size difference) If you have either of the hard drives and you would like to sell or possibly trade them to me, please PM me so we can work out a price and shipping.