The ground cable attaches to the motor mount bolt, or to the block itself, not the frame. Check it.
Wright uses a pretty heavy powdercoat that needs to be cleaned off when you attach any wires. I've had to do it several times when replacing solenoids etc.
The engine will run without a battery, its called flywheel magneto.
It ain't rocket science!
'Course if yer house has more wheels than yer truck...
" Old age ain't for sissies "