The old 22 cm. sauce pans are just slightly smaller than 9"x5" in size and hold 4 quarts with about 3/4" to spare I have a 3 mm tin lined one. and I bet Alarash a poster from c.h. may have a used one for sale. Finding an 8" sauce pan with a 6" height would require finding a large ‘milk’ pan, and it would not be 3 mm. thick. …Soy Turkiye could custom make you one…obviously not cheap…