I decided mrc as lots of s3/golf r owners have been done ther and doug knows his stuff. I also follow them on facebook and see ther dyno run printouts pop up on ther alot. They are only 1h30 from me also. Thers lots of places you can go for a cheap remap which might be fine i couldnt comment on...
The grill is from usa so it comes without the plate holder. But its just a black optics grill so it came this colour from the factory. Im guessing your car didnt come with the black optics pack? And the splitter is from maxton designs
I had the same issue when i had a jb1, i had to change something in the laptops settings before it would work but i was speaking to george on facebook at the time and he talked me through it, think i sent him a few pics and he guided me through it all