Summary

OK, I'm happy now, the wheelarch files are the final version. I've added recesses in the fronts to clear the headlamp buckets and tweaked the front edge to fit nicely inside the body. On the rears I've added a little cutout to clear the filler cap bump on the right side.
These were nested in Solidworks as I only have a 100 x 100 x 100 printer and my slicer wouldn't play nice. If you want the files separately let me know in a comment.

Designed to work with RCAWD eBay 70mm (or 80mm for a taller ride height) Alloy shocks and the original Red MN springs.

You will need to make two square cutouts in the rear bed and two cutouts in the front under bonnet tray to clear the top mounts.

This is still a work in progress as I'm now refining the design of the tray between the wheelarches where I mount my batteries (1 x 18650 LiIon cell each side).