I looked into getting the dark red GTI lamps last week, and the dealer told me it's just a matter of switching the units, regardless of the fact I have the licht und sicht package. So I assume that the R line are of similar if not the same spec.
regarding the winter floor mats I got mine yesterday at ATU for 34 euros (set of 4), Schoenek Gummi-Passformmatten Typ AFM 280/ FM 280, Art # 453368. Fits the Golf V, VI, Scirocco III etc. etc. Same quality as VW's for half the price
by the way, what type of TDI are you getting the 1.6 or the 2.0?