IMA LA ROCCO Rotary Rake

Looking for info on IMA La Rocca Gask 380 11 rotary rake. There is one on an auction tomorrow and I am looking for info other than the little I have found on Google.

IE if they are rebadged by someone else or if they are someone else's that has been rebadged. Parts availability? Specific weakness for which I should be looking. It appears that it has been used considerable but looks and feels to be in decent shape. 

I've got 5 rakes, but from info here, I REALLY need a rotary rake.

I don't see any on tractor house or fastline to get a baseline used price; general suggestions would be taken into consideration.

Mark

IMA LA ROCCO Rotary Rake