Vise Grip jaws worked great, pre-set opening so nothing was crushed, worked well as leverage tool once the fuel line pressure bled down (after running and disconnecting the fuel pump electrical connector). Got tank off, reglued the heat mat to bottom of tank, celaned a bit of oil and dirt up, decided to wait until cold days of the winter to repalce all the hose lines under the tank and those that go to the catch tank in front of back wheel.
Thanks for all the pointers guys, with words and videos it was not hard at all.