For what it's worth I have a Harris stand for my 1299 and it is excellent. It did however take a few weeks to arrive because they said they had a backlog they were working through. If you can confirm they're the same size I would recommend it 100%.
I emailed as recommended from someone on here and got sent the bill, couldn't work out how to do the international payment so went through the website, after half an hour of trying to work out what United Kingdom was on the drop down delivery location list (uno rega or some shit) I then managed to sort the order. Was 70 euro cheaper than what they quoted me via email!