Getting rid of car rust.?
Body work is the biggest expence on a classic car unless you have the experiance
to be able to do it your self, Mustangs you have got to really check out the known areas'
front valance headlight areas,rocker panels,sills, inner sills,rear upper trunk behind bumper
then special check at all suspension mounts and floor panels.inside upper trunk by rear windscreen
go back get some one that knows,take a flash light,and inspect all these areas
if there is body repairs and rust in these areas,leave this car go buy a better one
they are not rare, theres is plenty out there,some mustangs with bad rust can cost from $7000
to $12000 just for the body not alloying for paint,if it costs more than that its not worth buying.