Pivot lock shoes

I attached pictures of the pivot lock sheos, and the 27" 765 series (I think), that fits into the pivot shoes. The pivot shoes are what I am looking to buy. I think the tilt window is a silver line window. It is in a CP Morgan home built in 2000. The window is a 35 1/2 x 59 inch window frame. The pivot lock shoe's dimensions are 2 1/8' long, 1 5/16" wide, and 1/2' thick. I also need channel spreaders, as there are no cut outs in the channels to insert the pivot lock shoe. Please advise if you have these, the price, and how soon they can be shipped.