Anyone ever put a 6.5" compentent speaker set into kick panels???

[kickinasphalt]

I'm still planning my stereo install and currently looking at speakers. I've seen the Custom Autosound kick panel speakers for about $130 that come with there own brand 6.5" speaker. They also offer a Pioneer speaker model for $190. I found a place that will sell the panel without any speakers for $75. I got the idea of getting a component set to use instead. I figured there should be enough room to surface mount the tweeter at an angle on the panel directly above the 6.5". Has anyone tried this? How deep of a speaker can you mount in these panels?

P.S. Please don't tell me "mount them in the door" or anything like that. I don't want to hack anything in this cab since its so clean. Thanks.