Would he not be better off buying a running unit?
I remember when some one bought (long story) brought a jet engine they payed a couple a grand for it and it was a running unit.
But I can't wait till he starts it up for the first time, and even better, You can't moan about the noice as you helped him to move it in
Like the way he used the rolled system to move it in, very Egyptian roller system/ Used that when I had to move an old phone box. Simple but effective.
Tell him good luck