Solar Filter Film holder for 60mm refractor telescope

I picked up a "box store" 60mm refractor telescope (lens, not mirror) and am going to use it piggy-back with my much larger 254mm reflector (mirror, not lens) and its Goto mount. I ordered the film off Amazon (8"x8" for $19.99) and cut down to fit nicely. The adapter cover slides tightly around the dew cap, then you lay your filter film over the holder and slide the square piece over...make sure the shiny side of the filter film is facing the sun!!!!

I've included the SketchUp 2017 files s