A normal cannon No, but you can use a hand cannon at your own risk that it could explode whilst you are trying to kill him.
I don't think so. Check online guides for strategies to kill the Pest Queen.
No store in Runescape does such.
In the wildy you can kill others with a dwarf multi cannon for ranged and strength xp i believe. It would be effective as a bakcup plan incase you are dying in a fight. By the way, decorative cannons make no difference.
no, the cannon can't be used in the wilderness
Click Set-up cannon stand. Your RuneScape character will automatically set up the rest.
respectability
no
If u r talking about a dwarf cannon, then yes around 550K-850K
You can buy it on the grand exchange.
About 346 gp each.
To Set up the Cannon: Just have all the parts inside your inventory, and click on the cannon base. Your cannon will set up automatically. To Load The Cannon: Press "Fire" on the cannon when it's set up.