Connect it up yourself like... what could possibly go wrong...? 
Well, at about 27 Kilos it's not the easiest thing to manoeuvre single handedly. Delivery man (about 6' 2" and 15St) was breaking into a sweat and he had a porter's trolley. Then there's the inevitable scraped knuckles, strained muscles, blood, sweat and tears disconnecting the oldy, stripping down the power lead, removing it and disposing, fitting the new one into position ...
I think for a couple or three notes I'll let Jim the sparks take the strain
