5/1 winner= £1 x 5 = £6

                      £1 x ( evens...roughly ) 1/4 odds = £2

                      Total = £8

16/1 seconds = £1 x 4 ( 1/4 odds ) = £5 ( twice )

                      Total = £10

Treble = Evens £2 x 4/1 x 4/1 = £50

Grand Total = £68

That's just off the top of my head and is a minimum........is that close to what you were expecting ??