Thanks for the help, but I wasn't quite clear in my question. So I downloaded Sketchup and modeled a quick example. The wood thickness that I will be working with will be at minimum 1" thick. Up to 3.5" thick. Only the portion routed out will be 1/8" deep as my metal work is cut out of 16GA steel (1/16" thick)... and I will most likely have 2 layers. The idea is to have the top of the sign even or slightly below the top of the wood. I will then pour an epoxy over the top...sealing everything in. Think of a bar top with a sign in it.
I have access to a plasma table at work. This is where I cut my metal for signs for friends and such. When I can afford the one I want for my house, I will get one that will be able to convert to a wood CNC and back. Until then, I just want to play around with this idea.
I could take this to someone else to do for me... but that's no fun. I want to buy a smaller, cheaper router... as every time I buy something bigger or more expensive, I realize it's not for me and it sits on a shelf. (Ask my wife about my DJ maschine). LOL.
I plan on probably buying the wood from Lowes or Home Depot the first couple times... but I may see if a buddy can hook me up with some butcher block style pieces.
I'm using a Harley Davidson logo as an example because I know a friend wants one and it's complicated enough to get the idea across. Most of my signs are one off originals for friends and family. I don't have a website or anything. When I do, I will be doing original pieces. But if someone wants a Raiders sign or a Seahawks sign...(which some of my friends have asked me to make)... why not. LOL. Most of time, I trade for a good bottle of whisky.
Anywhoo... If anyone has an idea of what I would use for the router or any links to pictures, websites, products, videos, etc... that would be awesome. Every time I type in "routing large portions or areas"... I get either how to route out a big circle or how to use a router to plane a board. Not what I'm looking for.