While the earlier response looks suspect, Wyoming address with an international number...
I was about to ask the same question. I'm looking to simplify posting to CL and possibly Marketplace. Do you have any opinions on this? I saw a website for Wizposter; it looks like a possibility. Do you have any recommendations for a good product?
We use Automoxie and it seems to be very useful.
It will accept your inventory feed and you can post all your inventory and when a new vehicle is added (you can set it up to) it will post the new vehicle to 1 city or 100 cities.
It gives you filters to check each vehicle and repost if: over XX amount of days old or no longer ranked in the top 10 search results for that model and a bunch of other tweaks.
no affiliation with them, but they've been responsive with CS and I like their flexibility.