I am working on a website for a client who wants to launch with at least 2,000 articles, where in terms of links not all 2,000 articles will of course be available on the homepage or elsewhere.
But, my client wants Google to of course know about these old articles because of their unique content.
I suggested paging but the client is reluctant to use it.
I was therefore thinking of submitting two sitemaps via Google Webmaster Tools, the "normal" one with the last 50 articles and a second one, with only the old articles having no direct link on the website, making sure to keep in the 50,000 URLs, 10MB limit.
Is this the only way? And if yes, do I remove the old sitemap from GWT after all links are crawled or I just leave it there, untouched?