Quick update:
I am using UFS Explorer "RAID" version and all is good!
I disconnected 2 DVD drives from my desktop to free up 2 SATA connections. I then pulled my 2 1TB Hitachi drives from the dead LinkStation Pro Duo and connected these to my desktop (now I have 3 total drives in my desktop).
I first tried the UFS Explorer "Standard" version, and it showed some of the drive but none of the data I wanted. I was stating to become very depressed at this point.... The software said I had to build the RAID (had to determine which drive was #1 vs #2). Ugh...
So, I just tried the UFS Explorer "RAID" version and BINGO! The software figured everything out on its own in ~5 seconds. Wow! I was able to bring over some small files (trial version only allows small files), so I then bought the full version for $100.
Now with the full UFS Explorer RAID version, I am able to copy all my files from my 2 Buffalo Drives to any computer drive (or my portable SSD drives) with ease!
Using the RAD version is very intuitive. The software does all the hard work for you. I did not even need to read the manual with the RAID version - whew!
Best $100 I have spent in a long time... Now onto finding another NAS...
@oxygen8 - Thanks for your help !