I spent two days tracking down brake shaft seals for my 20 year old Mahindra with less than 800 hours that show no longer available on the Mahindra parts website. One dealer's parts had a newbie that couldn't look up the part. Another dealer parts department mistook the brake seal for an axle seal. The third dealer's parts dept. got it right and found the new substitute part number in about a minute.
In my situation, I don't think I can handle pulling the rear tire that weighs 460 lbs with
ballast, much less do I know how to replace the seals (there are two on the shaft) that are leaking gear oil. Dealer's quote to replace those seals $2,000 plus transportation both ways.
40 year old Yanmar with 1,004 hours still tight and leak free.
Buying a lesser tier tractor may save some money up front, but those savings can disappear in time and money later on.