I need to have added about 1 1/4 inches to the stock of a 20 gauge SLE. Could get by with just 1 1/8 if needed

Was thinking of going with a small black spacer and then a red rubber pad. I have a 12 gauge SLE with a similar configuration and that looks good but isn't truly representative because it is only an inch in length.

Other thought was to go with a black leather pad. Maybe or maybe not, use a black spacer here to go with the pad too.

BTW, I won't be doing it myself. Highly skilled gunsmith will be doing the work.

Thoughts and opinions are appreciated. Thanks!