When Mazda stopped making the LHD clutch pedal, I converted a small batch of RHD pedals to LHD for some people that were converting from automatic to manual transmission. I've done two batches, sold 10 of them, and
this is the last one from the last batch of 5 done this summer.
I have a professional welding shop do the welding so I have confidence that there won't be issues (4 of these are still in my cars or my friends cars). I make sure the angles are correct by having a brand new pedal (not for sale) when we make the conversion. I'm not making very much on these with the cost of the RHD pedal and paying the fabrication shop. It's really just a service to help folks doing the conversion so the price is firm. I wrote a book on the forums that you might want to check out with step by step instructions to convert a LHD automatic to manual with picture in each step.
I've never had an issue installing these, and in fact it was easier to install this in my Dom RX7 than a brand new one. See my car collection on FX.JDM Instagram.