You are very much on the right track with the GC and 1025R. I would recommend a trip to the Kubota dealer to check out a BX (2380 or 2680) as well.
But do not under-value the convenience of having good dealership support nearby. The best tractor in the world will need dealer support and/or parts from time to time. If it is a logistical ordeal to trailer the machine back to the dealer, or even to drive there for parts, that is a big ownership downer.
This may be a non-issue for you since you are not planning to buy a BH. But of note on the BX machines, you cannot add an oem BH to a 2380 or 2680 later if you change your mind. You need to go all in on the 23S to get a BH upfront, or accept that you will have to trade later if your needs change and you want the oem BH. I do not know whether the same is true with the MF GC series. But JD will sell a BH for the 1025r to you later if you want to add one. (At least they used to. Worth double checking!)
But do not under-value the convenience of having good dealership support nearby. The best tractor in the world will need dealer support and/or parts from time to time. If it is a logistical ordeal to trailer the machine back to the dealer, or even to drive there for parts, that is a big ownership downer.
This may be a non-issue for you since you are not planning to buy a BH. But of note on the BX machines, you cannot add an oem BH to a 2380 or 2680 later if you change your mind. You need to go all in on the 23S to get a BH upfront, or accept that you will have to trade later if your needs change and you want the oem BH. I do not know whether the same is true with the MF GC series. But JD will sell a BH for the 1025r to you later if you want to add one. (At least they used to. Worth double checking!)