I have same thing on white. It's a pita to keep clean. I was told you need to have the ceramic treated with something in order to protect it. I guess with that its ok. I would go for black one rather.

I think we are going to use the white subway tile to keep the budget down as I priced new tiles and it would blow out the budget. Really like the contrast grout idea to add a bit of texture and pattern. My partner is a builder and he loves the reclaimed wood shelf idea as we have a lot of spear old wood left over from the renovation. We have made a dinning table and fire place mantel from it already so it would tie in really well.

This made me laugh: http://www.theguardian.com/environment/2016/jun/09/seagull-turns-orange-after-falling-into-vat-of-chicken-tikka-masala I couldn't copy the picture, but it's hilarious.

I think the brands you have listed are good! What colour were you thinking? How have you gotten the opportunity to import carpet? I hope it's not too expensive for you!