Well I got the body off. I used a combination of suggestions in this thread. Jacked it up at the firewall with my floor jack until I got a 4x4 under the cowl, then jacked the rear up from the wood floor until I got a timber under the wheel wells. I found a used "high-lift" jack at a second-hand store that took it high enough to roll the chassis out. I was intimidated at first but it ended up easier than I expected. Thanks for all the advice!
