What board bag should I get?

I was walking out of my door with my surfboard in hand and the leash got caught on the door. The door swung back and hit my tail kind of hard. This resulted in 2 cracks
First (about an inch long):

Second (about 2 1/2 inches long):

Sorry about the bad quality. I can't find my camera so i used my cell.
The first one water could definately get in. So I sanded it down a little bit and put some Solarez on top of it. The second one the cracking was kind of beneath the last layer of fiber (or whatever it is). I couldn't feel anywhere that water could get in. But I put abit of Solarez on it anyways.
Do you think I did enough?
This incident taught me the hard way I need a boardbag
. My board is a 6'2 Fish (well actually it sort of looks like a long shortboard wih a fish tail) thruster. Should I get a 6'4 bag so I have room for like a towel or something? What are some good ones for about 40-50 dollars?

First (about an inch long):

Second (about 2 1/2 inches long):

Sorry about the bad quality. I can't find my camera so i used my cell.
The first one water could definately get in. So I sanded it down a little bit and put some Solarez on top of it. The second one the cracking was kind of beneath the last layer of fiber (or whatever it is). I couldn't feel anywhere that water could get in. But I put abit of Solarez on it anyways.
Do you think I did enough?
This incident taught me the hard way I need a boardbag
