Hello. I have a C2 with a grain head that is in good shape and works great. I'd like to get a corn head for it. Preferably a narrow. Can anyone tell me what models are available that will attach without mods? Number of rows and widths. Also what other model Gleaner combine heads will fit. I've run across a few Gleaner A,E and K heads cheap but not sure they'll fit. Any other brand heads that are fairly easy to adapt? Thanks for any help.