I have the same tractor and I am confident a 60" will be more than fine. I Would of picked one up this week but with all the rain and no rush, next week should be the answer.
KK will be my answer bang for buck. Only debate was $200 moremfor a reverse rotation tiller. Thanks to bulldog I think i will save my money. What prices are you getting for these tillers? $1450 here is the best I could find.
How much are you tilling? I am just curious.