Trouble Saving XML Output From SQL Task

I am learning SSIS, and am trying to save the XML output from a SQL task executing a stored procedure. I need to either save it to a .xml file, then FTP the .xml file to an external server, or do the reverse (FTP, then save file.) I can't get past the SQL task so that it works with the File System Task, or the FTP task.
Here is the stored procedure
Create Procedure [dbo].[HRGCSpace]
(@HRGSpace nvarchar(max) = ''Output)
as
Begin
Set NOCOUNT On
set @HRGSpace = (select
CustomerNumber 'CustomerNumber/@id',StartDate 'StartDate/@id', EndDate 'EndDate/@id',Action 'Action/@id',
WorkZoneNumber 'WorkZoneNumber/@id',BuildingName 'BuildingName/@id',BuildingFloorPlan 'BuildingFloorPlan/@id',
FloorName 'FloorName/@id',FloorFloorPlan 'FloorFloorPlan/@id',SpaceName 'SpaceName/@id',VacantUnit 'VacantUnit/@id',
SpaceFloorPlan 'SpaceFloorPlan/@id',Address1 'Street/@id',Address2 'Street2/@id',City 'City/@id',
StateProv 'StateProv/@id',ZIPPost 'ZipPosCode/@id',MoveOutDate 'MoveOutDate/@id'
from HRGCvCorrigoUnits
order by BuildingName, SpaceName
For XML Path ('Space'), Root('HRGSpaces'))
End
--------------------------------------
Here is the execute from the SQL Task
DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HRGSpace Output

If I define the SSIS variable User::HRGSpaces as string, Direction = Output, Parameter Name = 0, Parameter Size = 0
, then use in the SQLTask
General ResultSet = None, Bypass Prepare = True, Connection Type = OLE DB, IsQuery Stored Procedure = False,
Parameter Mapping for User::HRGSpaces,Direction = Output, Parameter Name = 0, Parameter Size = 0
the Progress is
"Progress: Executing query "DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HR". - 100 percent complete
Task Execute SQL Task - select the XML Output failed
Error: The wrapper was unable to set the value of the variable specified in the ExecutionValueVariable property.

If I change it so that ResultSet = XML, the Progress is
" [Execute SQL Task] Error: There is an invalid number of result bindings returned for the ResultSetType: "ResultSetType_XML".

If I add ResultName = 0, and VariableName= HRGSpaces, I'm back to
"Progress: Executing query "DECLARE @HRGSpace nvarchar(max) EXEC HRGCSpace @HR". - 100 percent complete
Task Execute SQL Task - select the XML Output failed
Error: The wrapper was unable to set the value of the variable specified in the ExecutionValueVariable property."

Leaving the ResultSet = XML, and changing the SSIS variable as Object, the Progress is
" [Execute SQL Task] Error: There is an invalid number of result bindings returned for the ResultSetType: "ResultSetType_XML".

Changing the ResultSet back to None, but leaving the variable as Object, the SQL task will successfully execute, but the File System Task with IsSourcePathVariable = True and SourceVariable = User::HRGSpaces when executed errors out with
"[File System Task] Error: Variable "HRGSpaces" is not a string. Error: There were errors during task validation. Validation is completed. Warning: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (3) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.

So, how to I resolve the Object vs String definition. Any help in getting beyond this is appreciated!