New Holland D-800 Big Square Baler

Hi,Could anybody please tell me about a New Holland D-800 Big Square Baler.I am considering  one to purchase and I would like to know if anyone has one and what experiences they have had with it.Is it easy to service????Easy to operate??? Availability of parts???Is it reliable????? This would be my first large square baler...I have only an 85 horse tractor to put in front of it..Would that be enough for it??? The hay market here is leaning toward big squares and my Vermeer 504G round baler is getting worn out......Thankyou....Farmer Jeff

New Holland D-800 Big Square Baler