My panel was just WAAAAAAYYYYYY too big.
I even cut into the cabinet to mount it, but it was still not right. It was mounted about 6" too high for one thing, and I also made it from Plywood instead of MDF/Partical board. The next one I do from scratch WILL be partical board. Plywood sucks up paint like a sponge! I think I was also using spraypaint at the time as well.
Yeah, it was a learning process. Kind of like running a red light or smart mouthing to a policeman. Not a great thing to do.

Russ