I finally put down some money and got the Optoma HD143x, after lots of research and deciding that I will make it work somehow or send it back.
After about a hour and half fiddling with controls, moving the unit (I tried different heights and even the coffee table) and adjusting it a lot. At one point I tried putting the telephoto lens in front of the projector lens but the lens on the projector is so large I ended up with a quarter of the picture missing.
But finally I got a widescreen 16:9 picture at 1080p/60 resolution positioned on my screen/blind. Its clear that ideally the screen isn’t wide enough
Originally I had to set it to 4:3 stretching the picture vertically. I thought it was acceptable but then started thinking theres got to be way to fit a 16:9 picture on the screen.
Then finally I found a image shift and crop feature which allowed me to position the picture at its natural ratio of 16:9. Its not perfect but it works and means I’ll keep the projector.
So next thing to do is get a long HDMI cable and replace the VGA cable for the old projector with it in the room trunking. I also need a better more solid backstop to rest the projector on. Currently its resting on my headphone case and thats not ideal. The projector only really has one support at the front and gets unbalanced when the back is up off the ground.
The research paid off and and now I’m looking forward to hosting some nice film nights complete with 7.1 surround sound and fresh popcorn. What a great Christmas present!