Tomato cages out of PVC pipe

[ArthurDent004]

I need to put up a tomato cage for my Early Wonder in a 5 gallon SWC. I was thinking of putting a bamboo stake in the each of the four corners of my rectangular bucket for anchors and then covering these stakes with 1/2 inch PVC pipe. I would create rectangular ladder rungs from elbow joints and short pieces of pipe so the rectangle can slide down over the PVC pipes sticking up. The rungs could be secured to these pipes with small screws or eye bolts. This would allow the rungs to be placed anywhere they are needed and allow the cages to be broken down easily later. I would use three way connectors and short pipes to provide solid rectangular support at the top of these pipes.

Would this be overkill for a tomato cage? Am I overthinking the amount of support need for such a small container? Would bamboo stakes and twine be enough support?