I jacked my '63 Chevy c10 up, which gave a lot more elbow room, but when you get down to it, there was still a lot of crawling around. At least the fire ants weren't up yet.
BTW, the long-standing reminder about POR-15, especially in close quarters. WEAR LONG SLEEVES and gloves. And don't paint right over your face, unless you like wearing little specks for a couple of weeks.
It's really not so bad. Just think about how you'll NEVER have to do it again.