A crack and a chip..... Need some advice

Looking for some opinions,



I recently bought a used Leemar 120 eurobraced off of another forum. I've had it out in my garage while working on cleaning it out. I haven't had a chance to work on it the last week because of the 100+ temperatures we've had in California recently. Well, today when I went to go work on it, I noticed that a crack had developed on the upper right side of the front pane.





There is not a gouge on the outside or inside as it may look like it the pictures.



There is also a chip on the bottom right of the front pane. It had been there when I bought it, but it was not significant, it seems to have climbed up slightly. It is not cracked.





I have been moving the tank around a bit and have had it up on it's side to work on it. I didn't hit it or bump into it at all, I'm thinking it may have been the temperature fluctuations that have made the crack appear.



My question is, is this something that I can or should repair? If not, how much would it be to get the front pane replaced?



Thanks