It probably looks higher (the grill), because there isnt the roll pan effect of a stock front clip. Only a slight slope, but still a flat peice of metal.
I think it looks like a cattle catcher from a train.
To cleanup those countersunk bolt holes, just spin a countersink bit in a drill, and just blip the trigger for a nice quick deburr. I can see those little chunkies getting pulled into the threads, or between the peices, causing them to not pull together 100% tight.
Thanks for the progress pics, love fallowing the build.