Mana Barrier + quickening.

Fairly sure that works, since Area spells can be shaped - but I don't recall off the top of my head if that spell has the area tag.

Quickening is a waste in such a circumstance.

Keep in mind that there's more than one way to "ward" something against magic. Biofiber, FAB II, Guardian Vines, etc. There are even semi-generic rules that don't go into intimate detail for how or why they work, such as Shielded Smuggling Compartments in Arsenal (p. 144).

I think it's better to use the right tool for the job rather than trying to manipulate the rules for warding so that they cover everything. Besides, considering how relatively easy it is to defeat or bypass a ward, it's not that great of a security measure. Especially if the opponent doesn't care if you know if they're coming or not, such as attacking you in a van.

Random question:
how would you transport these active wards?
you would ram everything active on the astral . .

That question will be answered in an upcoming sourcebook.

In the current RAW, there's no question of *ramming*, just of movement.

I would suggest that momentum and inertia mean nothing on the Astral plane. Interacting with a ward does not cause damage unless you choose to try and break it (and fail). (Edit: Old rule from SR3. Wards don't do damage at ALL in SR4.) Impacting an astrally-solid object at top speed does no damage at all.

More than likely, astral forms would simply be displaced from the path of an oncoming ward unless they chose to resist, at which point the normal rules for breaking barries take effect.

Ditto.

Yeah, that's what i was going for . .