Thanks for this topic, RobArm seems to be slow on this one too. I commend your curiosity and ingenuity. I wonder what those other parts beside the sight post are.
I got an airsoft front sight but the dovetail was too big and it seemed like it would be too tall. Hope this one works out for you. I was thinking of asking a machinist to see if he could make one up for me. PS do not buy anything from airsoftgi it did not come with a locking screw and they do not do refunds i.e. therefore they suck.