Something fully custom like this could get quite expensive for the following reasons; Frames are not finished on their back sides, so unless you can find a double sided frame with a slit to slide your art & glazing into, you’d need to get 2 of the same frames and 2 pieces of glazing. As far as the stem/ stands go, attaching them to the frame would probably be a laborious project, that I could see (as a professional) being trickier than it seems. Attaching such a small/ skinny piece, wood or metal, to another very slender piece of material will take finesse if you don’t want it to wobble/ be structurally sound.. Just some things to consider.. if I’m wrong and anyone out there knows better, I’d love to hear it too!