FWIW, I think the black trim looks just as nice as the white trim. I have an '09 so we have the white trim. However, I think Dezolen hit it on the head. In a few years after the trim is not so new, the black will hide mold and discoloration much better than the white. There must be a trend back to the black trim because we saw several new trailers out this past weekened and I noticed they had black trim. Don't remember which one's specifically (but they weren't Rockwoods).
As for the new floor, that new vinyl color matches the cherry nicely - and I can imagine it would with the oak... I would have wanted to the darker vinyl too though. We have the '09 Espresso interior, with the darker Vinyl floor and we get so many compliments on the floor and the interior in general.
Best of luck to you!
2006 Ford F-150 Lariat Supercab 4x4, Auto, 5.4L V8 w/ 3.73 and Equalizer WDH.
2009 2701SS Rockwood Ultra-Lite
Former: 2005 Rockwood Roo '19
Former: 2002 Ranger 4X4 4.0L