Homemade Tailshaft Loop

I have started on making the tailshaft loop for the same car with the homemade engine mounts......gotta have a loop to go drag racing here.
The loop is 6" pipe with a 5mm wall.
50 x 25 x 3mm RHS, some 75 x 6mm flat bar, and some 65 x 6mm angle.....held in with 4, grade 8, 1/2" bolts.
It isn't quite finished yet.