Unable to Transfer Time Machine Backups?

Hello community!

I'm having trouble copying 1TB of Time Machine backups to a fresh 4TB drive.

The 1TB drive is formatted AMP, Mac OSX Extended (Journaled), 1 partition, and has 11GB free. It has 2 machines backed up on it. One is a pre-Intel Dual G5 PowerMac and the other is an i7 MacBook Pro with 2 profiles/accounts.

The 1TB backup drive is working perfect to date and I needed extra space to ensure my backs are safe. Plus I am adding a new machine to the backups.

The new 4TB drive is formatted with GUID, Mac OSX Extended (Journaled), 1 partition. I have ignored ownership permissions. When I drag the backup folder from the old drive to the new it asks me for a password. I enter it. It then begins "preparing to copy to <new 4TB drive>." After about 1.5hr and 2,200,000 items prepared, I get this prompt...

"You may need to enter the name and password for an administrator on this computer to change the item named "Backups.backup".

My options are Skip, Stop, or Continnue. I hit continue. It begins to copy the data.

Error 1 @ 750GB: "Blank" cannot be converted. Please install a newer version of iWork.

Error 2: The operation can't be completed because you don't have permission to access some of the items.

Error 3: The operation can't be completed becasue an unexpected error occured (error code -8062).

Error 4: The operation can't be completed because you don't have permission to access some of the items.

Error 5: The operation can't be completed because you don't have permission to access some of the items.

At this point it just hangs at 750GB of 915GB.

Both are external. Both attached using USB to the i7 MacBook Pro.

What's the hiccup? AMP vs GUID? Pre-Intel & Intel back ups? 2 Accounts on one machine? It seems to be a permissions issue, but not sure how to troubleshoot this without messing up my backups.