1967 Dart GT Convertible How Rare is it?

It does need work i needs a lil metal work to be rite the is one spot on the drivers front floor that needs fixed someone tried to repair it but they didnt do a very good job and someone messed up the quarters when they tried to fix them but other then that its good but i dont know if i want to tell you what is was thinkin Im thinkin 440 Tunnel Ram mini tubbed and possibly a roll cage if i need it