4. Would you go M or Grand L (I definitely want HST this time)?
Getting the L5740 cab with R4s, FEL, front hydraulics. Will add grapple and plow later. Keeping L4300 (see above). Didn't really like the bigger cab of the 6060. Also looked at a JD 4720 cab and it was "OK". The price was pretty good for 66HP and an air ride seat, but I liked the Kubota better overall.
Most likly you will be disappointed in the R4's I was going from A 2wd MF35 to a L5740 with R4 HAVE NEEDED 4WD while bushhogging. also needed it for any pushing or pulling operation. I would definetly have traded for r1 if I could have.