Just a thought, if your back splash is anything like this:
View attachment 16194
...see if you're able to remove the OEM backsplash material. If so, you may want to take a ride up to your local big box home improvement store and seek out some stick on tiles that will work for the area around your stove.
The reason: pricing. Trekwood will probably have what you're looking for but you'll end up paying for it.
This is what I found on their website. You're looking at a cost of $90-$100 shipped for one sheet of backsplash that's 22x16 inches. I guarantee that you can find a favorable style and color locally and be well under that pricing after you tile both the front and side of the stove. You could even tile the small wall adjacent to the bathroom sink at the same time.
This is what I did.
The stick on vinyl tiles are very forgiving and will mask any imperfection on the wall surface. Here's just one example at Lowes:
https://www.lowes.com/pd/Elida-Cera...x-12-in-Actual-11-81-in-x-11-81-in/1000298799
Good luck.