Wondering about hassle and costs to swap out the wooden interior pieces on a 55? Looking at a car with Stone Leather and Burl, thinking the Chestnut looks better with Stone.

I thought the 55 came standard with the Alcantera head liner. If you didn't get the nappa leather option is is the interior of a 55 the sames as a 550? Hoping it was a notch above on the 55- Thanks