Holy Crap Its Huge!
That would look about as silly in your AP155 as my 8300 setup looks in my 80/480..
As for the missus.. Try and sneak it past her I reckon... The 16" would be a nice new toy!! Only problem I can foresee is the day that the truck rocks up to drop off a massive shipping crate, The Mrs may wonder "Whats inside the box dear?" At which point, You'd likely be dead..