Hi, Im trying to mount my Sanyo Z3 projector on the wall facing upwards and using a mirror to reflect it onto the projector screen. Now sanyo themselves do an official wall mount that does this for £400. Im going to try and build my own but just a couple of questions which would be great if any of you could answer. 1. Do any other companies build these at a cheaper price ? 2. Is it an efficient way of projecting (i.e. is there any loss in quality). 3. Do different mirrors (if i go down the DIY route) have different efficiencies ? Thx.