I am paranoid on safety... Full safety gear even when grinding easy stuff. faceshield, safety goggles, welding jacket and gauntlets etc etc... Double up on axle stands and leave the jack in place as well as blocks. Fortunately even if the van falls off the stands it won't squish me as I am leaving the wheels on and I can easily get under the van even off the stands. The stands are just to give me a bit of extra height, I could actually do the job without...I'm quite spoilt really as I have a choice of places to go too. I really feel for you as it's no fun working in those conditions. Just take care with it all and stay safe please, especially using the jack etc, we don't want a squished @Gromett do we!!!