Installed, as a test. Yes all bolts fit the holes. And yes the seat could be moved right to left before tightening the nuts under the car. And the seat can still go back and forth.
Then it was time to sit in it. What a difference. The pedals are still to the right, but you feel a connection with the steering wheel that wasn't there before. And shifter is in a more natural place. I look forward to a nice long trip in it.
Will take the seat out again and give each bracket 4 welds more. And maybe paint the brackets black, haven't decided yet.
Any disadvantages from doing this? Only that the left rail becomes visible, so if the carpet around the rail wasn't cut exactly with this in mind (like on mine) that becomes visible.
Next step is to lower the steering wheel, I'll get to that when I get my dash reinstalled. Ergonomics Made Easy