modify a space layout

We are a event company based in Shanghai. We are organize different exhibits & fairs but also corporate events. We are looking for a graphic designer for a long term collaboration not only one project. Some of the works will include space layout design, booth layout, stage layout (for fashion show or performances), flyers design, brochure design, some 3D design etc... We are working mostly with fashion & design oriented clients therefore we need a creative talent that can think out of the box and can propose his own ideas or concepts. Please send me some of your most creative work and some prices indications for some of the work you've done. We already have some jobs pending for you so we will decide soon, Thanks