Don’t know if you have the option to go with Kubota insurance or not. If you do, I hear good things about it. No first hand experience.
If you use it for any kind of business, ever drive it on the road, or ever take it off your home premises, don’t overlook the need for liability insurance in addition to coverage for the tractor itself.
It may be worth a discussion with an insurance agent in your area who regularly deals with farm/construction equipment to make sure you have what you want/need without anything you don’t need.
And yes, I have the tractor and the higher dollar implements specifically scheduled on a policy to cover them plus a liability endorsement on my homeowner policy to cover my non-business off premises use. Neither is particularly expensive.
All that said, I know nothing about insurance outside the US, which is part of the reason I suggest discussing your situation with a local agent who deals with insuring equipment.