Have today looked at the gearbox in my store here and see it is an M41 with the short gearstick OK - and it comes with the bellhousing for a clutch cable (so from a 140 rather than a hydraulic-clutch car).
Will be going to my store near my sons place in the next day or so, and think I have another similar 'box there too (as I have a photo of one - and the background isn't here!).
If interested and want direct contact, I'm on
paultill38@gmail.com but not at my computer when at my sons so sorry in advance for possible lack of direct reply - he is a computer-free zone!
Paul