After having all sorts of problems with my wideband controller I've decided to use it only for tuning, then return to the stock NB sensor for daily driving.
Consider using your stock coils and the MSnSE code without an external ignitor. My experience: I tried to use a Neon coil-pack with a Toyota dual-channel
if you're willing to wait a week or so, you could order two of the optional high current coil drivers (VB921) and just trigger the coils directly with the MS.
the project: 1981 Kawasaki KZ1100 6-1 wheel, Ford DuraSpark VR sensor MS1, v2.2 board, MSNS wasted spark I built this board originally just as an MS1 and used