hh,
when you sand blast, you better remove everything else, the dash and everything in it, the top, the top cylingers, linkage. all the mechanicals.
sand gets absolutely everywhere and will ruin anything you leave on the car.
you can try and mask it off with plastic and tape, but it is almost impossible to keep sand out. it will even ruin the lights in the your garage, trouble lights, heaters, welders, anything electrical in the space you are in.
thats my experience anyway.
i will take pics of the challenger wheelhouses.
do you want me to just post them here or send them to an email?
b5