Mine wont cost much really, not calipers anyhow, its the same 4pots used on R33GTSTs, 300ZXs, and S14 200SXs, so pretty common second hand.

The R32GTR disks are different tho and not cheap from what ive seen.

Might be an option to get some kind of Zoo custom brake setup sorted if mine need any real money spending on em as they only 290mm vented+drilled disks (as std) and Nissan 4pots, they not that great.