Mounting projector on garage door opener?

[Submercyful]

Hi..i will be setting up an optishot system in my garage. The plan is to have the screen against the door (10'x10') and mount the projector to the opener. The opener is 10' from the ground and 12' from the door. Just wondering what kind of projector would work best and if mounting it to the garage door opener is even a good idea? The ceiling is 14' high so I'm not sure where else I could mount it...Any ideas would be greatly appreciated so far I'm leaning toward an Epson ex7240 wireless. It has 3200 lumens and a 1.5 throw ratio (1.3 wide) with 1280x800 resolution

[wbond]

Go to projector central and use their dimensions as a start. It will tell you image size vs throw distance based on any projector you are considering. Also, there are ceiling mounts that have longer poles to drop down to any height you would need.