Hi,
As basic check, I insert lengths of rod of varying diameters through all the mounting holes for engine, suspension...etc. For the yolk (vertical) to horizontal alignment, a couple of discs with a central hole diameter to suit whatever rod diameter is inserted...Viewed from different planes, and aligning up the rods carefully by eye, it will give a basic idea if it looks suspect. The rods I use are typically 1 metre long threaded bars, or some mild steel round stock.