Rewrite Stored Procedure - sql-server-2008

Question

I have the next stored procedure which inserts values into 2 tables. To the 2nd table I insert id's of 2 last inserts from 1st table
However, I would like to rewrite it with one query instead of using temp table and while.
CREATE PROCEDURE CurrencyExhange
AS
DECLARE #TmpTable Table
(
ID int IDENTITY(1,1) NOT NULL PRIMARY KEY,
BillID int,
Amount decimal,
Rate decimal,
Date date
)
INSERT INTO #TmpTable
SELECT T.[BillID]
,[Amount]
,CR.Rate
,CR.Date
FROM [FinanceLabkovich].[dbo].[Transactions] T
JOIN [FinanceLabkovich].[dbo].Bills B ON B.BillID = T.BillID
JOIN [FinanceLabkovich].[dbo].Currencies C ON C.CurrencyID=B.CurrencyID
JOIN [FinanceLabkovich].[dbo].CurrencyRates CR ON CR.CurrencyRateID=FinanceLabkovich.dbo.GetRate(T.Date)
WHERE LOWER(C.Name)='usd' AND T.Income=1
ORDER BY T.Date
DECLARE #ToBillID int = (SELECT BillID FROM [FinanceLabkovich].[dbo].Bills B WHERE B.Name='Purse')
DECLARE #i int = (SELECT MIN(Id) FROM #TmpTable)
DECLARE #maxId int = (SELECT MAX(Id) FROM #TmpTable)
DECLARE #TransactionID int, #ToTransactionID int, #Amount decimal
DECLARE #date date
WHILE (#i<=#maxId)
BEGIN
SET #date = (SELECT Date FROM #TmpTable WHERE ID=#i)
SET #Amount = (SELECT AmountUSD FROM [FinanceLabkovich].[dbo].Cashflow WHERE Date=#date)
IF #Amount > 0
BEGIN
INSERT INTO [FinanceLabkovich].[dbo].[Transactions] (Name,BillID,ToBillID,Amount,Date,Income)
SELECT "Name"='Currency exhange'
,BillID
,#ToBillID
,#Amount
,T.Date
,"Income"=0
FROM #TmpTable T
WHERE ID=#i
SET #TransactionID = ##IDENTITY
INSERT INTO [FinanceLabkovich].[dbo].[Transactions] (Name,BillID,ToBillID,Amount,Date,Income)
SELECT "Name"='Currency exhange'
,#ToBillID
,BillID
,#Amount*Rate AS Total
,Date
,"Income"=1
FROM #TmpTable WHERE ID=#i
SET #ToTransactionID = ##IDENTITY
INSERT INTO [FinanceLabkovich].[dbo].[Transfers]
SELECT #TransactionID, #ToTransactionID
END
SET #i += 1
END
Any help appreciated.