Hi Gerry,
In my experience, I have found it easy enough without any rods.
If your handbrake is attached, you may want to dissconnect that for now as it is a bit of a jiggle to get the floor over it but it can be done. You also need to take the carbs or the intake off the car for clearance. I had put mine back on the engine for safe keeping but needed to remove them to get the body back on.
If your throttle shaft is still attached, keep an eye on that as well as it can get hooked on the block and bends easily.
I use my shop engine crane to manouver the body over the chassis and drop it down . I find that I can get it pretty close to where it needs to be by watching the bulkhead fit just behind the engine. As an FYI, I also have my chassis on it wheels on casters so I can easily move the chassis a little bit each way instead of having to swing the body.
I small shove of the tub can move it a little as need be to line things up once it is on the chassis.
Once I get mine on the frame, I generally add some fasteners to secure the body especially if I am doing panel gap work.
Just my 2 cents.
Cheers,
M. Pied Lourd