Is there some nationwide back order on these one piece rear fillers? I need to replace my current one since a small accident. Body shop ordered from (not one of our vendors) Classic Industries since the site claimed they were in stock at the time and I also needed a 'glass rear bumper, but that was weeks ago, now the site says "coming soon". Went to Highway stars who do not have them in stock, same with G-body (where I got my original). Any timeframe as to when they'll be available again? not necessarily with Classic Ind., but just in general so I have an idea of when they may ship?