Help #Custom Large Wall Mounted Display

I'm interested in getting a wall-mounted display case/frame for a very old American flag. The flag itself measures 35" x 65". I would have it sewn down to a stretched canvas – around 40" x 70" – so that's a big piece of arcylic. I would want the acrylic case to enclose the face and sides of the canvas, and then be able to be mounted to the wall. Anti-glare and UV protection would be great, but wouldn't have to be absolutely museum quality. ... Would you be able to let me know what you think such a project would cost? Thanks for your help! - Patrick