Prices vary, but I assure you they are fail. I can help with all aspects, from complete dev & graphics/web...to help compiling qt wallets...anything.
What are the prises and can you do PoW/Pos or add in KGW?
I can do those, I haven't made a coin with Kimoto Gravity Well yet, but I understand it, and thus wouldn't expect to have any problems implementing it.
PM me for more info.
Do you have any proof any coin you developed before?
As far as my "proof-of-work", I am involved in several projects that are on the eve of release, but name-dropping isn't wise as it may jeopardize those "said" projects.