has anyone tried bond roll bars (nsw)? If he doesnt already have the specs for an s2000
if you went there without the soft top on so he had access, and some pictures of other rollbars for s2ks, im sure he would be able to easily spec it up and be able to make a half cage for a decent price.

FYI my bolt in half cage for my 180sx was around 600 a few years back. and it was the first 180sx he did, so he did a custom fit at no extra charge. I think his prices have gone up since then but you are sure to get change from 1k for a bolt in.

theyre built to CAMS specs too.