X6 Roll Bar?

[MHeadling]

Hi Chaps, I fancy trying a rear roll bar on my 4 gear x6

Just got B4 roll bar kit and some 1.2mm piano wire, just had a few questions?

Is 1.2mm wire a good starting point?

What type of surface do you normally run the roll bar on?

Do I need any other bits to fit it on?

Any pics of one fitted would be great!