There's some great stuff on your(?) site. I have a lot of trouble navigating it though - I ought to learn better French

I like the look of these keyboards. I will definately be getting a replacement membrane or two but I would also really like to have an expansion port add-on like the memotech units.
Could anyone produce a memotech work-alike? Even just the schematic would be great. Perhaps we could even do a small production run?
I have a number of sinclair machines and It would be worth my while to have 1 keyboard that I could use with them all, otherwise I'll be replacing 8 membranes...
Thoughts?