Hmmm .. I have had 4 Williams EM's from '72 thru '76 Era and none have had the score motor orientated like that (mine have all been 90 degrees to that one) , nor in that position  on the playboard .

Agree we need some better quality pics please .

And my 'parting out' suggestion is , of course, a last resort option.

Many were orientated like this and many as you rightfully state were 90degress and further back in the cabinet on left.  My guess is that this is correct