I've mapped out a path for the south laser beam (draft attached). I've left the final stages until I have placed and measured the final modulator to get the most accurate MM solution possible.  z values are referenced to the laser head and quoted waists are the mean of the two axis.  After placing the first lens I took another beam profile. Its not so great for the vertical nearer the waist.  The fitted values are

Horz. beam waist = 250.5078 um
Horz. beam waist position = 1051.8195 mm
Vert. beam waist = 191.9869 um
Vert. beam waist position = 1069.7957 mm

Here I used a W2-PW1-1037-UV-1064-45P wedge and a 1" PBS-1064-100 (BK7 unfortually, but good enough for a quick measurment). 

Data is attached below along with plot.

-awade Wed Jul 13 15:49:10 2016

0.0254	0.0000005	0.0000005
1	825	1047
2	759	955
3	724	911
4	695	826
5	672	763
6	648	682
7	621	608
8	593	557
9	553	471
10	540	419
11	515	381
12	487	340
13	433	385
14	421	467