Peter,

I think this might work, nevertheless the calculation of your projection axis should be done with the center beam, not outer beam.
The most important thing in your new Setup is the much smaller Screen and that you can use longer optics than before.

Every Video Guy still would kill you for that, but I would say it will work, did a couple of these angles with Dl2s, 3s and similar

Best

Rolf
www.chaoscenter.net