hard drive - Windows restore saying partition is too small. It isn't

I built a media PC years ago with three 750 GB drives in a Raid-5 configuration. This allowed for 1.5 TB of space and had redundancy. At the time I didn't know how bad performance was with RAID. I wanted to break the RAID and instead simply use a hard drive. Here are my steps:

1. Add 2 TB hard drive


2. Boot into Windows 7 Ultimate 64 bit on the RAID.


3. Run the Backup utility and backup my drives to the 2 TB drive.


4. Unplug two of the RAID drives.


5. In BIOS, break the RAID.


6. Boot off a Windows DVD and from 'Repair', go to a command prompt.


7. Use DISKPART to CLEAN the single 750 GB drive, and create a partition on it.


8. Copy the backup from the 2 TB drive to the 750 GB drive (it's about 370 GB in size).


9. Clean the 2 TB drive.


10. Select 'Restore' from the Windows DVD boot option.


11. Restore the image off the single 750 GB drive to be on the 2 TB drive.

Step 11 tells me that my partition is too small. I call BS on this. Yes, it's smaller than the combined 2.25 TB of hard drives but this was in a RAID configuration and it is FAR larger than the 1.5 space I had. This was not a software RAID in Windows; it was created in my motherboard's BIOS menu.

Can anyone please help me? I need to restore this image somehow.