copy/paste job, I doubt that Loyce will want to engage in plagiarism.
Scrapping is of course copy/paste job. It requires a bot which LoyceV, TryNinja, BPIP are doing. The OP is asking for such service as per my knowledge.
OP, I think it's better for you to look for a ready-made solution and possibly adapt a little to it, it will surely be cheaper for you. for similar things, you have a good selection of WP plugins, but I'm not sure how long bot auto-posting can work on FB.
I too is not familiar with Facebook but for wordpress website there are many plugins which can scrap posts from another website and post automatically on a blog site. For Casino Critique we were planning such plugins for automatic news update for different sports but later removed it because this can eventually be penalized by search engine. Although we can disable the bot from robots.txt. We may consider such features later.