Hi Simon,
That's great progress!
However, I strongly suggest installing everything you possibly can while the body is off the frame. That's the way Triumph built the cars in the factory and it's much easier to fit the exhaust, brake lines, fuel lines, etc., etc. while you can access both the top and the bottom.
Take a look here if interested, at my TR4's rolling chassis. It's an earlier ladder frame, of course, but otherwise only minor differences. You'll find a few additional body installation photos in a folder there.
Of course, the steering column was not installed. The Weber carbs/K&N filters were the only things actually removed before the chassis was rolled under and the body dropped on. The quick/easy way to do that was simply to loosen the manifold bolts at the head and lift it all out in one piece. It might be possible to leave SU or ZS carbs/manifolds in place, I don't know. But, it's easy to remove them along with the manifold, too.
The parking brake lever was loosened so that it would stand straight up to let the body drop on. The alternator was loosened to get maximum clearance. Everything else - including radiator, oil cooler, even the distributor, gear shift lever and the gearbox cover in the cockpit - were in place. Working solo, I took it slow and easy with a pair of chain hoists, but there were no problems dropping the body onto the frame.
The carbs & intake manifold were reinstalled. The rest of the brake and clutch hydraulic lines got hooked up. The fuel lines are now complete. The body will be coming off again for final repaint, so I'm not installing the new wiring harness yet.
One thing to watch.... I almost got into trouble by failing to measure how much clearance was needed under the body, to roll the chassis in place. Turned out that 34" was necessary. But, I was lucky. The chain hoists managed exactly 35". Whew!
Keep up the great work!
Alan Myers
San Jose, Calif.
'62 TR4 CT17602L