Patio sliding door lock/handle set

My house was built around 1969. The patio door handles/plates broke and came off. I've looked for manufacturer's sticker but only found a safety sticker I think. Photo of lock plate on outside is missing handle. That got thrown out. Front photo shows slider that goes up and down to lock/unlock with hook sliding into slot that is attached to door frame (see close up photo). Distance between center screw holes is approx 6 5/8". Length of plate (inside anyway) about 7" and width 1 3/8". The slot where the lock hook slides into isn't really mortised into the door frame but there is a slot cut out where it fits through and screws into the inner frame. If I could find a replacement that was close to the same dimensions and had a similar locking device I could probably make it work.