Hi Keith,I am not familiar with the toby model but i assume that the body is hollow shell once removed?if so,the way i would remove the fake windows would be the same as making new ones, if the body is hollow i would go on like this:using a small drill,drill out holes in the four corners of the window,leaving a little waste(not too near the frame),then a series of holes along the sides and top,try and overlap the holes slightly to give a continuos hole,or seperate holes if easier,now with a sharp knife or small saw,join the holes to remove the centre,now around the inside of the frame you should have a series of half"U" shaped holes where the fake window was,now simply file down the waste to the inside of the window frame,finishing with very fine "wet n dry" paper giving you nice square window openings,dont forget to work the inside of the body to remove any burrs,so any glazing etc will sit exactly to the body
I have attached couple of old pics,the RPO had new windows cut,and the caboose had no windows in the front of the cupola,both worked as above,hope this helps you,regards,,,,,,,,,,,,,,,,,, Neil.