Actually that would be really easy to add.  If you add
gosub CheckForBagOfSending
to between line 314 and 315 to make it look like this:
    gosub SetLooterIdle
    gosub CheckForBagOfSending
    gosub UpdateLootInfo
That should add the functionality you're looking for and shouldn't disrupt the house of cards too much.  
Don't forget to vote over at EUO... 
I find that absolutely amazing that you can figure that out so fast.
I'll need to go through the script and do that tomorrow when I am sober. 
 Just found out my sister totaled my car today. 

Post Merge: October 13, 2012, 10:14:25 PM
sub HandleGroundTargets
  repeat
    namespace copy TM_HEAL from global TM_healer
    if !TM_HEAL = #TRUE
      wait 20
  until !TM_HEAL <> #TRUE && #LLIFTEDKIND = 0 && #TargCurs <> 1 && A notin #CHARSTATUS
  set #LPC 1000
  gosub ScanContainerForMatch NULL GROUND
  namespace copy loot_list from local SCFN
  if !loot_list <> #TRUE
  {
    set %loot_time #SCNT2
    menu set EUOStatus Looting ground items...
    gosub SetLooterActive
    set !TM_loot_in_progress #TRUE
    namespace copy TM_loot_in_progress to global TM_loot
    menu get EUOCheckPreview
    if #MENURES <> #TRUE
    {
      gosub AddItemsToList HISTORY !loot_list
      if %right_pane = HISTORY
        gosub DrawHistoryPane
      gosub TM_LootList !loot_list GROUND %global_destination
    }
    else
    {
      gosub AddItemsToList PREVIEW !loot_list
      if %right_pane = PREVIEW
        gosub DrawPreviewPane
    }
    set !TM_loot_in_progress #FALSE
    namespace copy TM_loot_in_progress to global TM_loot
    menu set EUOStatus Ground looting complete!
    gosub SetLooterIdle
    gosub CheckForBagOfSending     (right here, correct?)
    gosub UpdateLootInfo
  }
  set #LPC 100
return