The only thing I can add may not apply at all, and that is if you are particularly short, tall, fat, or have unusual features (like all your height is in your legs, or it's all in your torso, you have Fred Flintstone sized feet, etc.). If any of those things are true, then a "butt in seat" test to make sure you fit in an unseen ERA is an absolute must. If you're of "normal" size, and the guy that's checking it out is of normal size, then you can probably get away with a site unseen purchase. Most ERA guys are reasonably honest.
