I've never seen a folding 360, didn't even know they made one. I wonder how they make a Kemper work on the 0 series, would think evey time you change lOC the drums would spin faster or slower, maybe it wouldn't bother. We use New Holland 996 corn heads for earcorn on both cutters. The 58 gets a 8 row 30 inch and the 45 gets a 6 row 30 or a 5 row 36 inch. We use the adapters from New Holland. They work really good, but corn heads are hard on lOC gearbox. We usually cut earcorn at 30% moisture. At that moisture the 77 rolls have worked well, if the corn gets too dry or kernals get too small than the 99 work better. Thought with the new double belt that you can increase roll speed differance to about 60% instead of just 12% with different belt and pulley. That should really do the job in earcorn, even with the 77's. Most everyone charges by the ton around here. It varies a little but most of it is around $4.25 to $4.75 non processed and about $5.50 to $6.00 processed. That includes trucking and sometimes even the packing. All the imported European choppers for cheap $ have hurt the business. I would definetly buy the RI450 over the Kemper. less maintnance and less ear loss in dryer corn. Both of our RI heads feed great, better than the 360's did, especially in longer lOC. I would think that New Holland would not charge you for that fan. I would make alot of noise to someone, they obviosly know they have a problem if they make a kit to fix it.