The price depends, of course, on the size of the print. As all the drawings here are originally created as vector files (ie not as raster or bitmapped files) they can be enlarged without any loss of quality. So, in theory, they can be any size you want.
As an example, a 50 x 70 cms print will cost £???. Postage will vary depending on location but typically, a UK tracked package will be around £??