Well I don't know if this will work but this is a new link if people are interested.
http://www.homemodelenginemachinist.com/downloads/brass-stirling-60-152.html
If the link doesn't work then here is the manual way to find things in the first photo.
The plans are complete as my CAD model shows, the only thing I didn't use was the crank spacer and I made the hole in the power piston 1mm from the top not the 1.5mm.
I have included a 3D pdf so everyone can have a look ( ps you know you can make parts invisable to see inside things) and a couple of renders of my work.
Hope this helps, cheers.