My first thread in this neck of the rs246 woods, so please be gentle

After driving one 18 months ago, I have been tentatively looking at the V10 Plus as an enjoyable place to go after my RS4. I like the cars, but I am not a fan of the matte grey finish on front bumper air intakes, front grille and the rear number plate surround.
I much prefer the gloss black of the standard V10.
From what I understand, the front bumper parts are easily replaced, but is this true from the rear section, or is it integral to the bumper?
Would anyone know a ball-park cost of these parts/
Also, I'm not a huge fan of the standard Plus alloy wheel design, much preferring the 5 twin spoke design of the earlier V8s.
I know this design was used on the GT and V8 Limited, but to make sure would anyone please be able to confirm that these wheels would be a simple straight swap, there being no change in off set between pre and post facelift?
Many thanks in advance for answering these small queries

Darren