The reference material I had to work with was such that I had to come up with my own embellishments and design elements so its not an exact replica.
dA Gallery azmal.deviantart.com
how much would you sell this for?
Are you looking to cosplay Tarkus with actual metal armour?
I could point you in the direction of:
These videos should give you a basic idea of how it is done; you would have to draw your own patterns, though. Tarkus actually has relatively simple armour, with no intricate designs and simple geometry. The helmet would probably be trouble, though.
If you misused 'smithing' or I misinterpreted, you could easily make the armour using mat-foam.
I don't know of any resources specific to shaping foam, but the process should be simpler than these examples:
The foam they used is:
If you have any questions, feel free to ask!
Its awsome. 83
They look pretty awesome, considering how large they are.
Though, is there a reason you left out the blue hood, scarf, and cape? I think it would really top off the piece!
Essentially it would have cost a lot more than its worth when the client can just get some blue fabric from a store and get a similar effect for next to nothing. I just don't like offering half measures as a professional service if I can avoid it.