Try THIS -- It'll fix the corupt EFS partition which has caused no IMEI/Baseband EDIT It might also fix your WIFI issue. However, it is possible it might not work -- 99% of the time it does, but there's always the chance it won't.
Also note = NEE ROM's seem to have some issues flashing, losing sound, phone get's FC's etc. So be careful flashing especially if you upgrade to KK