when they were putting the drive motor in with the thing swinging off lifting straps wrapped around the forks had me cringing, I've seen the edges of the forks cut through straps, and also slide off which would have wrecked the paint work and bodywork, they would be better investing in a spreader bar and some shackles.
I have watched a few of these and they make a decent job of the conversions, but I have thought they could make life a lot easier with better equipment, a lift or pit would stop them scrambling about on the floor, and as pointed out by @DRM lifting stuff with slings and forklift tangs is a bit dodgy.