Charging over knocked down, stunned models

Hey guys,
We have had a lot of issues regarding charging over knocked down / stunned (KD/S) units. If a unit is kd/s in base contact with a standing model and somone wants to charge the standing model and the line of charge is over the downed ally, then what happens? Do they go around, take an initiative or are they unable to charge. Also, how many units (standing in a line) can charge one unit? Does it have to do with the enemies base size?
Thanks.

we play that while you may pass over kd/s models (both friendly and hostile) you still have to be able to end your movement in a vacant spot within 1" of the charged target

From what I understand, models can pass over allied models no worries.

And only models that you can get into base contact with your opponents model(s)are capable of fighting in combat.
There is an optional ruleset my group occasionally uses for allowing spear-wielding models to fight in combat (only with their spear) if their base is in contact with an ally who is in combat... but of course that's merely houseruling.

A model that is knocked down or stunned will not block LOS. As long as you have space to put your model base to base with the enemy model than you should be able to charge.

I have no idea what you are picturing in your mind or how the event was set up on your gaming board.

Nothing was ever stipulated on how many models can fit around another model. We play that you can fit one on each side of the model.

I believe this is something you need to work out with your gaming group as people use different size bases and base types (round versus square). Terrain also affects how many models can fit around a model.

Anything more than 4 models should be agreed upon your gaming group and put it down in writting. Granted a large creature base will allow more than four models. The point is talk it over with your gaming group.

No Initiative test unless you want to create a house rule

Ok. Thanks.