congratulations!!!! i hope you have good service out of your deere, always a lil hitch here n there on anything, sounds like they got it fixed, it has a WTY and if it leaks or wont start guess who gets to tear back into it, there is some positive to that also. I have done a few things to mine over the years and honestly it wasnt bad at all - i have replaced drive spindles/bearings/axles, chain, on my old scat trak, pulld the hydro pump and had it rebuilt, pulled the starter a couple times, pulld oil cooler and radiator, pulled seat, removed exhaust manifold tube and turned 180 and fabricated my own exhaust, replaced foot and control arm cables on valve body, replaced several hoses over the years, added lights, wiring for fan, i havent really thought its bad at all getting inside mine. i have the next generation scat trak now Volvo wheeled machine - track machines do require more maint and rocks are hard on them so i hope you have good luck - i would practice opening it up and looking around and checking things under the cab and access for stuff so it doesnt seem so overwhelming and familiarize yourself with it, maybe you will just soak it all up and it will be a win win