Is it legal? Only a judge can tell you, during a trial, to answer that definitively.
It is expressly stated at the federal level that tampering with VIN numbers is not legal, but nobody seems to give a **** about that anymore.
Is it worth it? Ask yourself what you have to lose before you answer that.
Typically, people that decide they have nothing to lose, end up not realizing what they have to lose until too late.
YMMV