How To Copy Detail Records To Another Header

Im trying to copy details from a specific header as details of a different header (eg. all sales items from invoice #10 copied as sales items of invoice #11).

So far I have two stored procedures:
1) sp_copyDetailsOne
/*Create a recordset of the desired items to be copied*/
CREATE PROCEDURE sp_copyDetailsOne @invoiceIdFrom INT, @outCrsr CURSOR VARYING OUTPUT AS
SELECT itemId, itemPrice, itemDescription, itemQuantity
FROM tblSalesItems
WHERE (invoiceId = @invoiceIdFrom)
OPEN @outCrsr


2) sp_copyDetailsTwo
CREATE PROCEDURE sp_copyDetailsTwo @invoiceIdFrom INT, @invoiceIdTo INT
/*Allocate a cursor variable*/
DECLARE @crsrVar CURSOR

/*Execute sp_copyDetailsOne to instantiate @crsrVar*/
EXEC sp_copyDetailsOne @invoiceIdFrom, @outCrsr = @crsrVar OUTPUT

/*Loop through the recordset and insert a new record using the new invoiceId*/
FETCH NEXT FROM @crsrVar
WHILE @@FETCH_STATUS = 0
BEGIN

/*Run the insert here*/
INSERT INTO tblSalesItems
(invoiceId, itemId, itemPrice, itemDescription, itemQuantity)
VALUES (@invoiceIdTo , 5, $25.00, N'Black T-Shirt', 30)

/*Fetch next record from cursor*/
FETCH NEXT FROM @crsrVar
END

CLOSE @crsrVar
DEALLOCATE @crsrVar


My question comes on the Insert of sp_copyDetailsTwo, as you can see the values are hard coded and I want them pulled from the cursor. However I don't know how to do this - do I need varables or can I access the cursor values directly in my VALUES clause? Or is this whole approach needing overhauled. Any advice is welcome.

Thanks