...how much are roll cages...
Not sure what happened to all the ex-Rockingham
Ibiza Cupra R cages - I had one until about a year ago, but sold it through the classifieds on here. There were a couple of dozen of the things knocking about at one point, plus the cages from the Seat UK
Ibiza Cupra demonstrators. These were all made by Custom Cages, and were six point bolt in jobbies. Not long after the Rockingham Cupra R's were decommisioned, you could pick up an ex-Rockingham cage for about £50. When I sold mine on here a year or so back for £75 I got my arm snapped off. Umpteen folks contacted me, and I reckon I could have asked for uite a bit more for it. Oh well, 20/20 hindsight
A six point bolt in cage is likely going to cost upwards of £300 to buy new - and unless you're a bit handy with a welder, you'll be looking at upwards of £100 or so on top of that to get the mounts welded in. Don't think you can get away with drilling some holes in the floor and sticking a few bolts through - you need spreader plates if you ever need to rely on the cage (hopefully you won't, but you never know). With no spreader plates, in the event of an accident the cage will just punch it's way through the metalwork leaving nice sharp torn edges all over the place - and the cage will probably cause more damage than it saves.