Ignore the header :) I will take some proper pictures of the bell housing but here is one by chance . It is cast from an original gt40 . I have the engine data for the machining but not the zf. The zf side of things should be very simple. You will need to change the ring gear on the flywheel to an austin a35 one, I have found them so if you need one I will get yours when I order mine.
No - major progress has stalled until I take delivery from some items from overseas. I am, however, continuing to gathe rbits and pieces so that when my transaxle and body arrive I can make some rapid progress. All the best,