Well another MX5 Roadster in progress, those Sierra boys better watch their backs.... catching them up soon at this rate.....
Well I don't know how I missed your first post but I'm glad to see another MX5 builder on here, by the looks of it you are certainly cracking on with it.
Well if I can help in any way just ask.... the best advice I can give is just remember the book and Saturn plans are a guide only. I can't remember the last time I looked at either...
Looking at your build you've already done your own thing in places.
With regards to the diff I'm going down the rubber mounted route with two Land Rover mounts, one in compression and the other in tension with a fully welded 5mm bracket around the diff nose. I guess if you can stop the diff arms rotating too much you should be OK.
I plan to use the diff rubber washers under the diff arms to as per the original MX5.
Looking forward to more photos of your build...