Do s search on Youtube for Diamond Shield removal. There's a company in FL that sells the removal liquid. It takes some doing but doesn't look all that bad if you follow his instructions. Normally after getting all the glue off all you need to do is buff and wax the front end and it should look as good as new.
Look for a Youtube video put together by Wayne from Ugly Shield. He has a 3 or 4 part video on the process. Very good video. Good Luck! I should mention I have to do ours too.
By the way There Phone No. 239-240-0793 -- Ugly Shield