Steampunk industrial table

[Sedgehammer]

2 species wood table. Thinking of making a steampunk industrial dining room table this summer.  I want 2 contrasting woods . 10' x 42". What's the minimum length base fir a 10' table? Plus what 2 woods glue up well? 
I love cherry, but it darkens a lot. 
Thinking walnut/hard maple, walnut/cherry, ash/cherry. Wood like 12/4 × 6" x 10'. No end wood. Wood router 1/2" deep x 1.5 wide dado around the outside edge of the table. Then add a laser cut metal strap in that dado. Screw that to the table. Have notches cut out with laser so on the 2 end pieces wood the fit through the side pieces.  Maybe I need to draw that part. Anyways, any thoughts on woods & related?

[Ljohnsaw]

 :P

[firefighter ontheside]

In my mind, you can't get any better than walnut and maple together.  For a 10' table I think a base somewhere between 7 and 8 feet would be good.
That gives you overhang between 12 and 18".  The table I recently made had 12" overhang on the ends and 6" on the side.

[low_48]

First thought, the table top will weigh over 300 pounds. Second thought, a steel strap will not let the top expand in the summer.

[Ianab]

Second thought, a steel strap will not let the top expand in the summer.

It will be OK for the lengthwise sections, but across the ends is a problem.

It could be done, but have 4 separate sections. The end pieces will need slotted holes holding them in place, and letting the end grain metal section slide a little for seasonal movement. The middle couple of holes can probably be fixed solidly. The long edge pieces could have a little 90deg tab wrapping around the corner, then the cross grain edge pieces would overlap those, and have slotted holes. 

It would give the look you are going for, but not rip itself apart with seasonal movement. 

[Sedgehammer]

@firefighter ontheside Yeah, that wood be a good contrast. I've dropped the cherry, but added hickory to the mix. 12" isn't enough for the end chair to slide in. 18" wood be better.  
@Ianab How much of a movement wood it need you figure? Since the end wise piece slides into the length wise piece, it has the ability to move already. I've seen other tables be fully screwed across the ends. What stops them from being torn apart? 
@low_48 Yeah, it'll be heavy. That's good though. Sturdy. 
The base is heavy, 300 lbs. But the one I want is only 56" long. Wood need 2 then? Or since the base is so heavy, wood 1 be enough? The base is over $2k, so don't really wanna buy 2. Spousal unit wood surely kill me..... 

[low_48]

The strength of the base isn't my concern, it's flipping the top over to sand the bottom after lamination, and then carrying it into the house. A 300 pound slab on it's edge coming through a door is a big problem. Hard to grip, hard to come over a step, and also getting it on top of the leg system in the dining room would not be fun. I learned a long time ago, weight doesn't equal sturdy. A 1 1/2" thick slab is strong enough to park a pickup truck on it. Holding up the Thanksgiving turkey doesn't require much.

[Sedgehammer]

The strength of the base isn't my concern, it's flipping the top over to sand the bottom after lamination, and then carrying it into the house. A 300 pound slab on it's edge coming through a door is a big problem. Hard to grip, hard to come over a step, and also getting it on top of the leg system in the dining room would not be fun. I learned a long time ago, weight doesn't equal sturdy. A 1 1/2" thick slab is strong enough to park a pickup truck on it. Holding up the Thanksgiving turkey doesn't require much.

I hear what you're saying and it's warranted to consider that. I have a hoist and can strap it to flip it if needed. Getting it inside isn't a problem either. I have wheeled furniture movers and can easily rig up a way to hold the upright. i'm not married to that thickness. just thought the massiveness of it added to the overall look.
As to the base, I wasn't referring to the weight for it's strength. It was if the length with it's weight would be enough to carry that much overhang. 
Thanks for your inputs though!