I have purchased 2 of OS 110 alpha with out the pumps. Yhis was prior to the pumped version comming out.

What I would like to know is how to upgrade it to the pumped version and if this is possible.

I have looked at the OS web site but the parts listing doesn't specifically list a Pump.

Can I purchase just the pump? and what is the part number?
Or do I need the pump and a new Carby. If so what are the part numbers.

I would also like to do this for a Alpha 72 for a another project.

Thanks