If you're not concerned about original look the best thing to do is to use aftermarket mounting brackets and pulleys.
Alan Grove is one that has multiple applications to just about suit any configuration. If you were to call them, they'd more than likely fix you up with brackts and pulleys.
The alternative is to spend hours trying to line everything up unless you are very lucky or get all the components from a completely untouched engine and remove all the parts from the timing chain cover forward including all belts regardless of condition.