Clean out the recess and fill it with black Acraglass.
A leather covered pad is very classy for a nice doublegun and I have seen them done for less.... but not a lot less. An orange period pad is nice but we see so many of them that have not been finished after installation and they need to have the sharp edges rounded and contoured and finally polished. A half-completed period pad is ugly and detracts from an otherwise nice gun.

Dean S. Romig