JustTankFrames is an tank frame addon (you guessed it). It doesn't rely on Ora2 or Ora3 at all so it's lightweight and very simple to setup.

You can have up to 6 tanks/Main assist, with their targets and target of target. Each hp bar will be colored according to class/status with an emphasis if your target is the same as the bar owner.

Theses tank frames should automatically updates themselves upon joining a raid in which raid leader/officers are using it.

Option panel from Interface - Options feature some settings for size and spacing between bars, an option for disabling target of target.

To move the bars, you need to grab the upper left bar and just drag around.

For easy filling of tank name, open the setup panel by clicking on minimap button, just mouseover the player ingame or on any frame (party or raid) and hit space. If you want to remove a tank, mouseover nothing and hit space for automatic removing.