I have started on the G5200's mower deck. I have stripped the paint and most of the rust. Today I cut out the rotten areas and have started welding back in 1/8" sheet metal. Here are some pictures for anyone interested:
https://picasaweb.google.com/110263893958737890068/KubotaG5200DeckRepair#
John in VA
https://picasaweb.google.com/110263893958737890068/KubotaG5200DeckRepair#
John in VA