I think that black and grey is one of the most classic combinations ever. Just my opinion. I have a '90 Jimmy that has this interior and I like it because it isn't anywhere as dark as all black. You can do as much grey as you want. Mine has grey door panels with the lower carpet, the dash pad, headliner and seats are grey. The steel parts and steering column are black. You could easily leave the panels on the bottom of the door off, or use black, and the flooring could be black. I would be mindful of how dark the floor gets at night, though.
I am not sure how to post pictures without being a paying member, but it can be done.