@ramrod writes:
Only the 1992-1993 240's had that type of reservoir that was built into the pump
Yup, and it was also shared on some Penta engines - p/n 1359116, if anyone's interested.
They also used to have an "oil reservoir kit" for it , p/n 1272422, but it's NLA these days.
Still, Skandix has 4 complete pumps (less pulley) in Germany, for 130 Euro each.