Remove Vocals from Karaoke Song

I need a karaoke song modified by removing ONLY some of the vocals (basically only one word). The original file is in YouTube format, and I need the final product in MP3 format. The youtube song is in Hungarian, and I only need the word "Kisfiam" to be removed... (Budget: £10 - £20 GBP, Jobs: Audio Editing, Audio Engineering, Audio Mastering, Audio Processing, Audio Production, Audio Services, Music, Music Production, Sound Engineering)