Jim drilled the hole (about 2.5") in the film holder and then I used Epoxy Steel ($ 4.99 ) to glue cheapo adapter ($9.99 eBay) to it.
Total cost of modification - $ 15
The shutter on the old camera is set to T (it stays open all the time), NEX-F3 is set to aperture priority, manual focus and "Release w/o Lens = Enable". The focusing is very simple and accurate, thanks to focus peaking and magnification. Articulating LCD helps a lot to take pictures at a low vantage point.
Tessar 135mm 1:6.3 + NEX-F3
I will add more pictures over the weekend.