I made a horizontal funnel out of aluminum flat sheet, cut it to length, bent it into a u-shape. I loosen the drain plug a bit, to finger tight, slide the funnel in to the oil drain hole, and remove the plug, allowing the oil to run along it and into the drain pain. Works every time, only spills a few drops, which can be controlled with a rag laid underneath.

If you can take the drain plug with you to a well stocked hydraulic hose supply house, those folks will be able to tell you what fittings/nipples/extensions are available in that thread size.

Or--have a weld shop add an extension pipe to the short pipe you have now.