so..... you are not going to ride it till you fix the plugged air vent.... right?
if you cant figure it out start a thread in the Vstar section of the forum with a subject line something like "Plugged tank vent crushed gas tank..."
a lot of members dont read the new member intro threads, so the people that know what caused this might not see these post in this one.
You are not quite that crazy for using compressed air to push it back out, except for one thing: If you are going to pressure test or straighten out a tank again, fill it to the top with water, then use compress air to pressurize the water. Then if a seam pops or the tank ruptures, it will only go "thunk" and crack open a bit, because there is not a lot of compressed air in it.
If you only use compressed air without the water, then it could go KABOOOOOM !!!! and blow shards of metal all over the place.
Then of course you need to use alcohol to get the remaining water out of the tank after you drain it.