Ok, some good(ish) news.
I have found a drive with a revision A board, however, it's not a scrap drive and doesn't strictly belong to my chap. In that case, he won't allow me to send it to you, however, he will let me swap the boards and, if it works, I will dump the contents to one or more DVDs and send them to you. If it doesn't, we can either store the drive until another comes along, or return it to you at your expense.
If you want to pursue this, send me an email and I will reply with an address. Either way, there will be no charge, other than material costs.