The attachment to open to see details may mean people aren't looking and answering.
BX1500, 2003. That's an older tractor, and relatively low HP. A bit over 1,000 hours isn't high, but isn't low either. The photos show it to be in good condition. The bare machine plus mower I'd guess around $7,000, although I'm not really close to the US market.
Front snowblower is reasonably attractive, even though the machine is lower HP (snowblowers need a lot of HP to work well). The front snowblower is probably worth another $2k, maybe more.
Not having a front end loader is a minus.
It depends who wants it, and winter is coming. I'd be guessing $7-9K, but it's only a guess. It could be a bit lower, I doubt it's much higher.