Hello! To be honest, I took some time and now I have the task all done - the outcome is a full screen map, in 1920x1080 resolution, with no interface, no street names, just the clean map, as you wanted. Of course, if you need it smaller, I can resize it; if it turned out there is something I missed, I will quickly fix that too, of course - though I checked it really precisely a few times and it looks pretty decent to me. I can send you a miniature of it if you want, and - if you like it and choose me for this - I'll send a full sized version right away.
Have a nice day!