thank you! I am working in this area as well however the ABS plastic that I will be tinkering with will be on the right and left side. I am looking to fill that area between the tub and the side pieces. This area has always been a “scratch my head area” in that it was never filled in in my opinion well. And the aftermarket part for this, for me personally looks a little clunky.
Again thank you everybody for jumping in on this and offering help.
lowlander has done what you're contemplating. Perhaps he'll see this and offer up his advice. His description and pics are in here somewhere, probably in the 'What was today's Sling projects thread.