Help finding extended crank pump

Has anyone in their life ever seen a pump with an extended crankshaft for PTO/accessory drive? I can’t find one anywhere.

It runs an alternator and blower motor/oil pump off the end of the pump, which is why I can’t replace with a normal pump.

I really only need a new piston but I’ll go for a new pump at this point since I’ve tried literally every place and can’t find someone willing to help me find a piston.

Appreciate all input.

There commonly referred to as twin shaft pumps, interpump and udor have them. Better to get a new pump.