boombastik

hi folks just joined up as looking for some advice my is200 has developed a leak from the fuel tank on further investigation it looks like the tank has corroded thru under one of the tank straps can any one tell me how hard a job it would be to change ? ive had a quick look and it seems to me that the prop exhaust and handbrake cable needs to come off is there a haynes manual to download & can anyone tell me where i could buy a new tank? searching google only brings up breakers thanks in advance