Shouldn’t be too hard to implement it at govariants.com, two or more disconnected boards for one game are already possible, additional moves after captures just require to change whose turn it is (unless you want one move that consists of multiple stones, still possible). Deciding whether to use captured stones immediately or keep them as points would be somewhat new, there’s no mechanic for that yet AFAIK.
If you need help with implementing it there, ask away.
See Collective development of a server for variants if you’re interested.