For print, I think you need to render at around 250 dpi, render size depends on the size tou want it printed. Vue lets you decide in  pixels, as well as inches and cm in the render dialog box. As for the place to do it, depends on where you live. What I would do, is give a small size render to print and see how it looks, so it won't cost too much if you need to make some postwork on it if it doesn't look good enough.