Fuel tank cleaning

[jcstriper1]

Hey everyone,
can anyone help me here with this issue?
First, let me say how this came about. I am helping my neighbor who is elderly who has a 21 ft. 1996 Robalo CC 2120 225HP 2 stroke. He wants to eventually sell it, but the thing is he has not started the motor in 8 years, i know not good. If by the grace of god this motor starts using seperate gas of course, his fuel tank will need a dam good cleaning or will need to be replaced. So the question is does anyone know someone who does this? Or does anyone know who does replacemnt of fuel tanks? The tank is under the console which holds a 100 gallons. There is only about 10-15 gallons in it now. Just don't know whether it's more prudent to get a new tank installed or have it cleaned. Thanks to all who reply. Monmouth/Ocean county works for me.
John