Since the time factor is going to be a long-term issue, it needs serious attention from the beginning. Many SMBs schools and educators concoct grandiose plans for offering all manner of services and content via their Webserver. Big mistake. Start small and roll in new features over time. While it may be harder to sell the idea to administrators in the short run, it will lower the possibilities of failure if your goals are less ambitious and more attainable.
You might consider starting off with pages, updated weekly. For a school, this might include pages containing the assignments covered in each class. That in itself will incur many problems that you should be prepared for, the biggest of which is just getting the weekly assignments from each teacher in your department, let alone the entire school. Without a proper plan and everyone dedicated to getting the curriculum online, after a few months the percentage of teachers that submit their weekly assignments will likely drop significantly. Likewise, a small business owner needs to be committed to updating this site rregularly, or to having someone else do it.
In the education sector, the time factor can be diminished if your school offers a Web creation class. The students can get creative with the site and pages while taking the burden of getting them posted off of your shoulders. It makes for one more student project to be managed, but it might also ease your workload.
Another hurdle is the hardware to host the pages on. With so many schools practically hunting for loose change on the grounds to meet their budgets, it's common practice to look for hardware donations to meet your needs. While donated computers are easy on the budget, getting them operational also takes time and costs money.