Here are the links to both units Wiki,
http://www.seeedstudio.com/wiki/CAN-BUS_Shield
I havent compared them to see if I have conflicts, although that is a real concern to me. As for the Yun, it looks like it has promise, then I would only need the Can-Bus shield. Basically I can handle the Can communication and interpretation as thats the protocol I use the most in the mobile world, but its transferring that data to the WiFi and then to a destination address where I dont know what I am doing.
Basically I want the end user to be able to open a http page and view what is happening on the rig, in near real time. So a simple GUI that is easy enough to read on a smartphone, tablet or laptop.
Any further thoughts guys, I appreciate your input, and like I said, I am willing to pay for help.