BUT theres 3 Oz of Paint youve missed , in the tank bay .
A c hisel , hacksaw blade & acetone & paper towel in there , maybe . Acetone loosens it up nicely usually .
Though if its well stuck down & NOT fuel impregnated , that'd explain why you left it . D F R P as it were .
Labour of love , a refinish . I hate putting holes in things with sandpaper new , let alone a refinish .
Usually end up back at bare bones in disgust , with the odd patch in the balsa required .
So Well Done .