by "brake outlet" I assume you mean the canti posts?
A couple things:
1. V-brakes generally don't work with road or cross levers. You either need to use specific mountain V-brake levers or Diacompe V287 road levers, or Travel agents.
2. cutting off your rear canti posts is stupid. You're hacking up a perfectly good frame feature, ruining the paint, decreasing functionality and marginally improving aesthetics (the crap left over from your hack job is going to be ugly). Why not just mount 2 brakes? You're already losing street cred by riding a cross bike on the road, might as well make it functional.