Rotary Cutter (JD) Gyramor 737 need info

[holmes]

Hi guys, I came across a listing for a 14' dual spindle (John Deere) Gyramor 737 rotary cutter on fb marketplace but can't find specs on it online. I have a JD 4066R with 66hp and 50 at the pto. For med/light field mowing would I be ok? I have 20+/- acres to mow and I don't fancy using a 6' for the large areas. I don't know when it was made but assume replacement parts might be an issue when needed.

Thanks in advance for info and advice-