Model Textures cleanup old to new

Hello i'm workin on a project about restoring
a "old" model to "new", in this case, renewing a rusty boat to a new boat, editing some "ruined" elements
and repaint the texture as new.
For the model part, i have some experience, but for the texture part... Im not so good.
So i search for someone that have texture esperience and can edit the textures as a new.
You can make it from new images, but have to look as the same of the "old" version.
You can also upscale it, if you wish.
I attach a sample of what i mean, it's a try i do,
(Maybe someone here can do better also that texture)

Here the pack with the textures i want to restore:

https://mega.nz/#!9NJ3HL4J!zt3ywjzLxuB_D...pMmvxL1is0

(Png textures on a 17mb zip file)

  Sample.jpg (Size: 473.13 KB / Downloads: 6)