Hey there, I got 6 sony bvm crt's that are in nurgent need for service, some have crooked geometry, others colors,...

Reading and watching videos got me really scared of the high voltages in those appliances. I am a repairman at heart, but 15 0r 20KV are really out of my league. I got some sony 14m4 that are working but have weird geometry (bent corners). How can I proceed safely to repair them? Where do I start. And keep in mind I don't want this to be a thread just for me, vut for the entire Vogona community. Should I post images of those monitors first?