correct area first of all and welcome :)
Providing the volume is not to high dropping an element wont be the end of the world. If you are planning on keeping it best to get a specific 15A outlet behind where it is going to go (or get a sparky to see what is needed to upgrade your powerpoint).
You will need a pump and motor combo generally Procon or another similar Rotary Vane Pump. New motor and Reco pumps are around $300 from the Procon importer or one of the sponsors here may be able to help out with one.
If it is wired the same as my Z9 then you just plug the pump into the outlet prime the pump with water and off you go. The internal electronics on your machine will keep the boiler to the correct level providing they are not caked up with crud ;)
As to internal rebuilding mine is only at naked body stage at present due to a lack of time.