This isnt exactly what you wanted but you will get the idea. If you use the #40 as a BUIS, the TA31 mounted to a TA55 trijicon mount may not work. Some folks couldnt get it to fit, others could. If you use a ARMS #19 mount, it will fit no problem.
If you use a different BUIS, either mount will allow the ACOG to clear the BUIS. Here's a TAO1nsn on a TA55 mount over a Knights 600M site with a RAS II.
[img]http://www.imagestation.com/picture/sraid61/p909cb3b526ebc0a79c0e0b1277044485/fc327040.jpg[/img]