"newer" malta window

hi, the original malta window rotted. soon after malta went out of business and was purchased/assumed by a few employess, had this window manufactured. remember talking to one of the employees that worked for the original company. ordered the upper & lower sashes along with new balance jambs. now, a few years later, one the the pivot shoe/post has broken off the lower sash and the device that allows tilt-in has broken away from the spring. would like to replace both balance jambs w/ new internal hardware and the hardware that is attached to the sashes. from the interior the upper sash measures 38 3/8"w X 37 7/8"h. the lower is 38 3/8"w X 37 1/8" h. what is available? look forward to hearing from you. jeffrey