Thanks for the corrections. The following firmware archive is what misled me:
http://www.datadonor.net/HD%20Western%2 ... 40MVB1.rarIn retrospect I should have examined the actual MOD files, eg ...
http://www.datadonor.net/HD%20Western%2 ... 22NCB1.ziphttp://www.datadonor.net/HD%20Western%2 ... 22NCB1.rarSo it's a "BLACK I", not a "ROYL", in which case the first link appears to have been filed under the wrong category.
As for the figure of $2K, it wasn't just a wild guess, but was based on comments in the following thread, albeit an acrimonious one:
wd5000aaks-00tma0-pcb-needs-changing-t15491-40.htmlUnfortunately I wasn't aware of the simple ROYL procedure at that time, otherwise I would have been able to save the OP a great deal of heartache.

That said, if I were shopping for a professional data recovery service, I would use the following company as a yardstick:
http://myharddrivedied.com/hard-drive-recovery"We charge a total of $800 ($50 evaluation + $750 Recovery) for a standard IDE/SATA Laptop or Desktop hard drive recovery. The only additional charge is if parts are necessary."
AISI, the OP has a donor PCB, so $800 would be all he would need to pay.
The proprietor of the abovementioned company is Scott Moulton who is arguably the most prominent professional in the field.
As for Salvation Data's tool, I know firsthand that a resale price of $300 is easily achievable, despite the lack of transferability of support to the new owner. In fact, if I were attempting to recover my own data, I would investigate whether I could take advantage of Salvation Data's "Team Viewer" remote support facility. Perhaps they could be convinced to do the job remotely at no additional cost???