AC Firewall Evaporator and Fan Housing

[PbFut]

The fire took a pretty good whack at my original AC system. The Fiberglass box has been roasted badly and would be difficult and time consuming to restore. I bought some gelcoat thinking it was just soot on the box but it is more than just soot. The heat has cooked the fiberglass. A search appears the box is not reproduced. Dynacorn makes one that is close but not acceptable.
Did I miss something or do I need to post a want add over in the correct section? Paying for an old discard and then needing to restore is not my first choice but I don't seem to be finding anything else.