Those are reference 6913i I think, I have identical ones in mine - i've had them since 2002 and they've been great, definately go for them for that price!
Ideally not 6x9's in the shelf, as the pressure generated by the subwoofer/s will interfere with them and move their cones up/down = eventually dead 6x9's.
Just run a decent set of amplified component speakers up front
6x9's are a great cheap stop gap before a 'proper' ice install but it really annoys me when people slate them full stop, they have theyre time and theyre place and work perfectly well. You've made a good purchase mate