I've seen suitable models on your website that conform to the 1.75" spacing for the interior latch, but none of them specify the spacing for the lower screw attachment. Mine is 4.5" from the lower post (as shown in photo).
Tom from SWISCO responded:
June 12, 2013
Thanks for posting. This handle appears similar to our 40-033. The second dimension you have listed is also 4-1/2" on our 40-033.