I have been thinking for a while, and even asked Cen about it, but all you/I really need is a second roll bar to protect the engine.

I have looked into buying a second roll bar, but the fuel tank gets in the way of mounting it. []
I was also thinking of adding some bars from the stock roll bar that run rearwards over the engine and attach to either the rear bumper or shock towers. But with out any access to s decent work shop, and crappy basic tools at home, I am unable to make such a thing. [][]