If you were interested in making an adapter to use the grid 5.0 on a smallhd dp6, the dimensions are as follows:
8cm x 12.5 cm are the inside dimensions of the bezel on the dp6. The bezel is 1cm thick vertically and 1.5cm thick horizontally. It is very slightly rounded.
I'm not sure if this is a perfect fit as the small HD screen is 1cm bigger around in each dimension than the Red touchscreen so you would be cropping .5 centimeters on each side if you mount it flat.
There may be a clever solution but you'd probably have to have a dp6 in your hands to work it out.
I do wish it would work though because the resolution difference is quite noticeable when a viewfinder is on it.
once again thanks for a great product.