No luck on search here. I'm surprised there's info on my
stove, I think I have all the info there really is. My stove is vaguely similar. It still has its info tag on the back. I was wondering why they went out of business too; regulations maybe.
Have a look at this site: http://stovehospital.com/
, maybe he has ever seen one, or could give you guys a lead.
Plenty of grates available out there, something might fit. good luck!