csv - PowerShell Script to Rename - Copy - Move

I am trying to write a PowerShell script to do the following.

step 1

Rename files in source (FTP folders) directories with it's "current_name_datetime.csv" as per a source file "Source_list.csv" this file has the directories "source,destination" I want this script to look into.

step 2

Copy newly renamed files to backup directories as per destination in Source_list.csv this file has the directories "source,destination" I want this script to look into.

step 3

Move newly renamed files to final destination directory which is not in my current script.

---------------------My Script ----------------------

$sdfiles = Get-Content c:\!tony\Source_list.csv
$sourceDir = "c:\test\"
$destinationDir = "c:\testing\"
Get-ChildItem $sourceDir -Recurse -Include $sdfiles "*.csv"|
    ForEach-Object{
           $newname= "{0}{1}_{2}.csv" -f $destinationDir, $_.BaseName,[datetime]::Now.ToString('MM-dd-yyyy-hh-mm-ss')
        $_|Copy-Item -Include ,$sfiles -Destination $newname -whatif }

-----------------------Error--------------------------

What if: Performing operation "Copy Directory" on Target "Item: C:\test\cscenter Destination: C:\testing\cscenter_10-01-2015-12-22-24.csv".

I see in the error that it is trying to copy the directory not the single file in each directory and creating a new folder using the original folder name and renaming the folder and appending the date/time stamp.

Any help would be greatly Appreciated.