Well, after copious breaks and interruptions, the back end is finally together!
They only just peek through the chassis, but at full compression everything squashes up to about 2mm shy of hitting the chassis, so I figure it'll be ok.
The back end of the chassis does twist a bit too, but I figure under actual use the chances of actually getting that much strain on it are minimal ... there's also copious flex
Here's where the links are now located
To-do list for the weekend: lengthen propshaft by 25mm, rebuild front end (fixing the slop, new top of shock mounts, new shocks, *not* fixing the steering until after pay day), make a battery tray, sort out body mounts in new places (the whole body is moving back a bit) and then just throw a set of electrics at it - simple