if i m able to reproduce yes...about rivets modifying rivets are not visible...so i m sorry but i will not change..i can make skins in two ways with bump mapping and without so all are satisfied. in the skins you show rivets are near to be invisible in some other they are. modify the rivets it's really problematic with material i have and do not looks good..if you read in our forum i just answered a week ago to this.
Surely lots of rivets on that Duck's skin but they are VERY small and only really show from up close :
View attachment 5034
For your small rivets you might like to try this: create a vertical row of dark rivets of only one pixel, copy and paste as many rows needed. Turn one row 90 deg. to create a horizontal row and copy and paste as many rows needed. You'll now have a layer of the complete rivets pattern in dark color. Copy the rivets layer and paste as new layer which you then brighten up.
If you want rivets laying upon the skin place the light colored rivets layer one pixel *above* the dark colored layer. If you want the rivets to look more flush to the skin, indented even, place the light colored layer one pixel *beneath* the dark colored layer. Will look like this :
Play with the transparency slider of both layers to get best result. Mind you, this is no bumpmapping, pure handwork. ( i think repainters will love you for it.

)
the murphy pilot in some scenes didn't have the hat so it will be...if i have to ask also the hat will take much time and many people want it fastly.
The hat is of course the most significant item to identify Murphy as the pilot of your Duck model. If you like i'll be happy to create that hat for you. Gmax or 3dsMax.
seems the skin of murphy pilot is the same from last skin i did...i am correct?....change only the uncovered engine part that we have on another model.
You can have a reasonably good look at Murphy's Duck with the movie link i added earlier. On both sides it reads 'RN/MS MOUNT KYLE'
The shade of blue you already have on one of your Ducks might well suffice, yes. Check out the roundels in the movie clip.
Louie : Can you fly !???
Murphy : Who do you think kept this flying lavatory together ??...
Would be great to hear that before engine start sound, wouldn't it...
Ciao,
Jan