Running slant six, manual trans and driveshaft for 68 Barracuda

I have a roller 68 Barracuda convertible in need of a cheap replacement 225 slant six and manual trans. It currently has 3 on the tree setup and clutch/brake pedal. I need it mostly to have something that runs so I don't have to keep pushing it in & out of the garage. I need something within striking distance of Sacramento, Ca.