Not sure to be fair , as I’ve never mixed and matched like that. However they are the servo wave style which many use on canti brakes once adjusted for pull ratio so could work , you’d need to take a look if similar has been done
Sorry but v brake levers won't pull road calipers properly. The adjustment just took some of the snatchy feel from them but doesn't make them compatible in any way shape or form
I have some postage cost only 8spd if you get stuck - completely compatible with 9sps mechs and chains, just not cassettes!