Product Design

Hello,

I would like to develop my own stationary items branded collection. with around 17 items such as ( Rulers,Pens,pen cups, Organisers
tray etc..) to be developed in a 3D format visuals in order i be able to manufactor those into a real products and be able to market
the samples.

Please let me know the rate for you to charge on such items ,and whats the regular procedure.
Thanks,
Ghanem