welcome moonman!
Being as big as it is, you aren't going to have a huge audience. This is mainly because of the cost to have it shipped to a buyer. this can run anywhere fro 200-500 dollars depending on dimensions and weight.
However, if you can find a buyer who is willing to pick it up in your neck of the woods, then you could make a little money. Supposing the cabinet is in beautiful condition, the CRT is good, and the chassis has the potential to be brought back to life, you could probably fetch a few hundred dollars, perhaps more if you find more than one person who wants it to start a bidding war.
It would be a great restoration piece considering its already said to be working. IMO, this hobby is more about preservation and restoration than making money. I'm sure someone else here would want to grab it and bring it back to full glory.
where was the set located?