If it's still under warranty I would send it back to Crosman or at least contact customer service at Crosman. WWW.Crosman.com
Most likely "No," but here is the parts drawing for the pistol (see the link below) Crosman offers a service to locate repair shops that fix older Crosman air guns see the link below
You will have to find someone who specializes in air gun repair.
Depends on what is wrong with it. You did not say.
Well if the spring is broken, take it to your local airsoft store and ask them to replace it for you. If you have experience with fixing airsoft guns you can just buy a compatible spring and install it you else, but it looks like you don't since your asking. If it is a cheaper airsoft gun unlike a 100 dollars or above weapon purchased form an airsoft retailer, dont bother fixing it. If its not do what I said above.
Solder the wire.
It all depends on what is wrong with it.
Take it to a qualified repair shop
depends on what you buy and if you can fix it
You have to buy a new battery. There is a few ways to repair one. It depends on what you did to it. I recommend a standard 8.4 volt battery. It has a decent fire rate and is affordable
If you have broken armour you fix it in your house.
instructions on how fix a broken finger
See the link below.