I have been considering getting several of these for a long time now. In fact so long that I have been meaning to buy a brake and try doing it myself
(i have never had the skill in metalworking needed to consider this idea, and I know if I did it would be the HF or Northern brake so you know how that is going to go already)
or see if anyone made them and see if we could get a group buy going. 3-4 of these trays for all those HF 44" owners I'm sure we could get a good deal and there is decent money to be made in it also.
I have also been looking at cheapo baking trays and nothing so far seems close enough to really be worth the time or effort.