What Is A Kubota B5100E 2 Cylinder Diesel Tractor Worth?

I have a 1978 Kubota B5100E with manual trans. And a 4' Wood's belly mower. I bought both of them new. Unit has less than 1000 hrs. Never spent a night outside and looks and runs like new. I love this setup and it is not for sale but if it were, I am thinking $2,500.00 would be a fair price. This tractor has never been in the shop. I do all the maint. And it should last me for as long as I need it. I am not a big fan of Jap. Stuff, but this thing is really a fine machine and does what I need it to do. I mow 1 acre, till a small garden and push snow on a fairly large concrete driveway without any problems. Hope this helps.

I just bought one with mower deck and plow   823 hrs.  For $1297
but ill have over  $2600 in it when I'm done restoring it  in about
a week .  A b5100e is worth  what ever some will pay for it
I guess.

Depending on condition could be anywhere from $200.00 up to $1500.00.  Maybe more  need more info to make better guess.  Is 4x4 or 2x4  hydrostatic trans or manual   running or not etc