Upper Idler Disassembly

[BSims66173]

Had some play in one of the upper idlers on my 350c. Thinking it was a worn bushing I took it apart. The shaft is actually worn. Deere list the shaft for a little over a hundred dollars. A new seal is out of sight at 174 dollars. My question is, does the shaft just press out or will it need to be machined out? Also does anyone know of an aftermarket seal any cheaper? Thanks

Barry