So what to do with the cab from the B30-7? Ever hesitant to throw out useful things, I've modified an earlier phase Atlas B23-7 sill to a Phase 3 by moving the stepwells and pilots inboard 6 inches at each end and replacing the bolted panel and short battery box cover with a longer cover. I have also cut up an Atlas C30-7 body to fit the shortened sill. This gives me a B36-7 shell.