if the worst you have is a 1/16th of an inch I think you are golden !

If you are real picky..and I don't know your kit first hand..but you might be able to add 1/16th more wood to the bottom, (where its off) and just sand a tiny bit more of the top, bringing the sides more in align. Of course don't go crazy and sand on the top surface until its frail, or gone...

But if its truley only off 1/16th, and not an inch or two also at the tip..don't sweat it..sand it