Front uprights are in position. They are loosely bolted up and seem to fit quite well (Thanks Mats!). Some 3d printed camber adjustment spacers will be up to the job for the time being. I will keep all the .STL files so can always come back to these if they need upgrading material wise.
The Renault R27 uprights have a handy couple threaded inserts (possibly for sensors or brake duct mounting) that are at a perfect height for the steering arm. Bit of CAD work and I have made a mounting point extended out at an angle to meet the rod end bearing. Seems to steer ok off the ground ! Pics below (Bolt will sit in recess, just didnt seat in fully for pics)