As it's only aluminium , I would light sand it by hand and fill it with the nearest colour silver.
I brought some silver that's the nearest match to the pescara silver, which isn't available, in a spray can though, but what I done was spray it into a small cup and hand paint it to improve it.
Your welcome to it, as I no longer run pescara's on my ed30, and your welcome to it fella.
Pm me if you want
Steve