Anders, most of the things I work on tend to be 'off the beaten path'. I've always got some new headache to contend with that sane people would've avoided. Although you're plans for the Dart haven't included stuffing a big block in there now, who knows what tomorrow will bring?
Ignore the naysayers and grasp onto that car of yours. They may think your priorities are skewed and that you've gone off the deep end but just maintain that Mopar passion.