Pass choice: INT250 vs X350.8 + He9

Hey guys so trying to decide between a used INT250 or demo X350.8. INT has 2 year warranty left and X350.8 has 3 year full warranty. INT is from USA to Canada and X350.8 is local so won't have to ship out if something goes wrong. Preamp is Audio GD HE9. If I do 350.8 I will not upgrade my preamp for 1 year. Speakers NS5000.

Now I know at first it seems obvious INT250 is the choice. But because of taxes and border fees it comes to $11k CAD and X350.8 comes to $15k CAD. I am leaning 350.8 for the horsepower (which may drive bigger speaker in the future) and local dealer support and due to the not massive difference in price. But I recognize the Preamp in the INT250 is maybe better than the HE9 (although HE9 is very well regarded).

Any thoughts?