WIH,
Nice tractor. You won't be sorry for getting the Kubota. You should have many many years of reliable work out of it and if you do ever sell it, it will keep a good re-sale value. I like the tops...they are worth the money, IMO.
A couple of other attachments that you might find useful are the post hole digger and a disc. If fence building, the post hole digger will pay for itself, quickly. If you buy a disc, don't get those cheap ones because they will wear out the bushings in no time. Get a heavy duty disc and it will provide years and years of service.
Be careful.