Welcome to our world. One time I set up to run a bunch of boxes and end up with handles on the inside of my boxes. (on two sides anyway). I was so made I could spit... Matter of fact I think that I did spit, quite a bit that day. But it turned out nice. Now when removing those boxes I just have the bees lift them off for me from inside. :-D Makes it really nice.
There is nothing more frustrating than finding a mistake that you could have prevented. Once I had to move a whole two car garage back about 4ft, after building the house and realizing that I had screwed that up. LIFE,,, I know that we are here to learn, I just wish I did not have to learn so much so fast.
This is the crane getting ready to pick up the garage and set in back 4ft. This screw up only cost me about $40K!!!!
Good luck sarge, It will work out. You will end up needing those for something and a slight smile with come across your face.