If you get like a Art Morrison 8 pt roll bar and do a rear down bar like Franktf (fallow he roof line back and turn down into the rear package tray) I don't see why it wouldn't work
id like to roll cage my four door, but it probably wouldnt happen for a long while. that gapp and roush four door is pretty sick!!!
If you can turn your Maverick into something like this, then IT would be the ultimate 4dr. This is one nasty 4dr 6sec car!