240TDs are as rare as hen's teeth in the US. Maybe www.pgauto.com can help you.

You might present a 300TD head and 240D head to a machine shop and see if they can move the pump. Most 617 heads have bosses for an SLS pump. Seems like you have to drill and tap some holes and put a wobble drive on the cam sprocket. Maybe the same is true with the 616 head.

Consider a tandem (power steering/SLS) pump from a 300TE since parts are more readily available.

Sixto
... stay tuned