Not sure how practical it may be to add top & side view, you would have to change both side view mirrors and have it reprogrammed for the top view feature, for side view the cameras are in the front fenders, so you would need new front fenders, so perhaps you should look into this more closely to see if its feasible.
Regarding the light interior, I had Silverstone which is basically platinum white on my former M6 for nearly 4 years. As long as you keep it up, it will always look great, mine looked like new the day she left me, so with a bit of upkeep it should be OK.
congrats and good luck
'16 F80 ///M3 Tanzanite Blue / Sonoma Beige...Delivered!..pure driving excitement!!!
Dearly departed...'13 640i Gran Coupe Black Sapphire Metallic w/ Cinnamon
Past lives...'13 335i...'08 M6 . . .'05 645Ci...'00 323i...'85 735i...'77 630CSi...'86 325es ...'01 740iL...'09 X3