I guess I could chime in here, even though I'm a little late. The Level 10, IS the original all aluminium case, designed by BMW. It was used for about 4 months. Like brand new. No marks or scratches etc.Which Dell? U3007, U3011 or U3014? $400-700 depending on model and age.
I'd guess the Phoebus is worth around $100.
Is the Level 10 the original aluminum one?